We are open Saturday and Sunday!

Call Now to Set Up Tutoring:

(888) 888-0446

Algebra 1 : Statistics and Probability

Study concepts, example questions & explanations for Algebra 1

Create An Account

All Algebra 1 Resources

10 Diagnostic Tests 557 Practice Tests Question of the Day Flashcards Learn by Concept

Example Questions

Example Question #18 : Mean

Find the mean for the following set of numbers:

$\displaystyle -98$ , $\displaystyle -52$ , $\displaystyle -15$ , and $\displaystyle 23$

Possible Answers:

-12.5 $\displaystyle -12.5$

-35.5 $\displaystyle -35.5$

2.5 $\displaystyle 2.5$

-37.1 $\displaystyle -37.1$

Correct answer:

-35.5 $\displaystyle -35.5$

Explanation:

The mean is the same as the average. To find the mean, use the following formula:

$\text{Mean}=\frac{\text{Sum of all values}}{\text{Number of values}}$ $\displaystyle \text{Mean}=\frac{\text{Sum of all values}}{\text{Number of values}}$

$\text{Mean}=\frac{(-98)+(-52)+(-15)+23}{4}$ $\displaystyle \text{Mean}=\frac{(-98)+(-52)+(-15)+23}{4}$

$\text{Mean}=\frac{(-165)+23}{4}$ $\displaystyle \text{Mean}=\frac{(-165)+23}{4}$

$\text{Mean}=\frac{(-142)}{4}$ $\displaystyle \text{Mean}=\frac{(-142)}{4}$

$\text{Mean}=-35.5$ $\displaystyle \text{Mean}=-35.5$

Report an Error

Example Question #71 : Statistics And Probability

Find the mean for the following set of numbers:

$\displaystyle 4x$ , $\displaystyle 5x$ , $\displaystyle 8x$ , and 12x $\displaystyle 12x$

Possible Answers:

8.5x $\displaystyle 8.5x$

9.25x $\displaystyle 9.25x$

6.5x $\displaystyle 6.5x$

7.25x $\displaystyle 7.25x$

Correct answer:

7.25x $\displaystyle 7.25x$

Explanation:

The mean is the same as the average. To find the mean, use the following formula:

$\text{Mean}=\frac{\text{Sum of all values}}{\text{Number of values}}$ $\displaystyle \text{Mean}=\frac{\text{Sum of all values}}{\text{Number of values}}$

$\text{Mean}=\frac{4x+5x+8x+12x}{4}$ $\displaystyle \text{Mean}=\frac{4x+5x+8x+12x}{4}$

$\text{Mean}=\frac{29x}{4}$ $\displaystyle \text{Mean}=\frac{29x}{4}$

$\text{Mean}=7.25x$ $\displaystyle \text{Mean}=7.25x$

Report an Error

Example Question #71 : How To Find Mean

Find the mean for the following set of numbers:

$\displaystyle 5y$ , 10y $\displaystyle 10y$ , $\displaystyle 8y$ , and -2y $\displaystyle -2y$

Possible Answers:

5.25y $\displaystyle 5.25y$

$\displaystyle 5y$

5.5y $\displaystyle 5.5y$

4.25y $\displaystyle 4.25y$

Correct answer:

5.25y $\displaystyle 5.25y$

Explanation:

The mean is the same as the average. To find the mean, use the following formula:

$\text{Mean}=\frac{\text{Sum of all values}}{\text{Number of values}}$ $\displaystyle \text{Mean}=\frac{\text{Sum of all values}}{\text{Number of values}}$

$\text{Mean}=\frac{5y+10y+8y+(-2y)}{4}$ $\displaystyle \text{Mean}=\frac{5y+10y+8y+(-2y)}{4}$

$\text{Mean}=\frac{23y+(-2y)}{4}$ $\displaystyle \text{Mean}=\frac{23y+(-2y)}{4}$

$\text{Mean}=\frac{21y}{4}$ $\displaystyle \text{Mean}=\frac{21y}{4}$

$\text{Mean}=5.25y$ $\displaystyle \text{Mean}=5.25y$

Report an Error

Example Question #71 : How To Find Mean

Find the mean for the following set of numbers:

16a $\displaystyle 16a$ , 58a $\displaystyle 58a$ , -80a $\displaystyle -80a$ , $\displaystyle 3a$ , and $\displaystyle 9a$

Possible Answers:

1.6a $\displaystyle 1.6a$

2.8a $\displaystyle 2.8a$

-0.8a $\displaystyle -0.8a$

1.2a $\displaystyle 1.2a$

Correct answer:

1.2a $\displaystyle 1.2a$

Explanation:

The mean is the same as the average. To find the mean, use the following formula:

$\text{Mean}=\frac{\text{Sum of all values}}{\text{Number of values}}$ $\displaystyle \text{Mean}=\frac{\text{Sum of all values}}{\text{Number of values}}$

$\text{Mean}=\frac{16a+58a+(-80a)+3a+9a}{5}$ $\displaystyle \text{Mean}=\frac{16a+58a+(-80a)+3a+9a}{5}$

$\text{Mean}=\frac{86a+(-80a)}{5}$ $\displaystyle \text{Mean}=\frac{86a+(-80a)}{5}$

$\text{Mean}=\frac{6a}{5}$ $\displaystyle \text{Mean}=\frac{6a}{5}$

$\text{Mean}=1.2a$ $\displaystyle \text{Mean}=1.2a$

Report an Error

Example Question #71 : How To Find Mean

Find the mean for the following set of numbers:

$\displaystyle 5$ , $\displaystyle 48$ , $\displaystyle -9$ , $\displaystyle -8$ , $\displaystyle -8$ , and $\displaystyle 14$

Possible Answers:

$\displaystyle 8$

$\displaystyle 7$

$\displaystyle 10$

$\displaystyle 6$

Correct answer:

$\displaystyle 7$

Explanation:

The mean is the same as the average. To find the mean, use the following formula:

$\text{Mean}=\frac{\text{Sum of all values}}{\text{Number of values}}$ $\displaystyle \text{Mean}=\frac{\text{Sum of all values}}{\text{Number of values}}$

$\text{Mean}=\frac{5+48+(-9)+(-8)+(-8)+14}{6}$ $\displaystyle \text{Mean}=\frac{5+48+(-9)+(-8)+(-8)+14}{6}$

$\text{Mean}=\frac{67+(-25)}{6}$ $\displaystyle \text{Mean}=\frac{67+(-25)}{6}$

$\text{Mean}=\frac{42}{6}$ $\displaystyle \text{Mean}=\frac{42}{6}$

$\text{Mean}=7$ $\displaystyle \text{Mean}=7$

Report an Error

Example Question #76 : Statistics And Probability

Find the mean for the following set of numbers:

-3c $\displaystyle -3c$ , $\displaystyle 5c$ , $\displaystyle 6c$ , $\displaystyle 6c$ , $\displaystyle 8c$ , and $\displaystyle 8c$

Possible Answers:

$\displaystyle 6c$

$\displaystyle 5c$

$\displaystyle 4c$

$\displaystyle 7c$

Correct answer:

$\displaystyle 5c$

Explanation:

The mean is the same as the average. To find the mean, use the following formula:

$\text{Mean}=\frac{\text{Sum of all values}}{\text{Number of values}}$ $\displaystyle \text{Mean}=\frac{\text{Sum of all values}}{\text{Number of values}}$

$\text{Mean}=\frac{(-3c)+5c+6c+6c+8c+8c}{6}$ $\displaystyle \text{Mean}=\frac{(-3c)+5c+6c+6c+8c+8c}{6}$

$\text{Mean}=\frac{33c+(-3c)}{6}$ $\displaystyle \text{Mean}=\frac{33c+(-3c)}{6}$

$\text{Mean}=\frac{30c}{6}$ $\displaystyle \text{Mean}=\frac{30c}{6}$

$\text{Mean}=5c$ $\displaystyle \text{Mean}=5c$

Report an Error

Example Question #77 : Statistics And Probability

Find the mean for the following set of numbers:

-45n $\displaystyle -45n$ , $\displaystyle 6n$ , $\displaystyle 8n$ , 15n $\displaystyle 15n$ , 15n $\displaystyle 15n$ , $\displaystyle 6n$ , and $\displaystyle 2n$

Possible Answers:

$\displaystyle n$

12n $\displaystyle 12n$

$\displaystyle -n$

$\displaystyle 2n$

Correct answer:

$\displaystyle n$

Explanation:

The mean is the same as the average. To find the mean, use the following formula:

$\text{Mean}=\frac{\text{Sum of all values}}{\text{Number of values}}$ $\displaystyle \text{Mean}=\frac{\text{Sum of all values}}{\text{Number of values}}$

$\text{Mean}=\frac{(-45n)+6n+8n+15n+15n+6n+2n}{7}$ $\displaystyle \text{Mean}=\frac{(-45n)+6n+8n+15n+15n+6n+2n}{7}$

$\text{Mean}=\frac{52n+(-45n)}{7}$ $\displaystyle \text{Mean}=\frac{52n+(-45n)}{7}$

$\text{Mean}=\frac{7n}{7}$ $\displaystyle \text{Mean}=\frac{7n}{7}$

$\text{Mean}=n$ $\displaystyle \text{Mean}=n$

Report an Error

Example Question #73 : Statistics And Probability

Find the mean for the following set of numbers:

$\displaystyle -10$ , $\displaystyle 50$ , $\displaystyle 6$ , and $\displaystyle 78$

Possible Answers:

$\displaystyle 36$

$\displaystyle 31$

$\displaystyle 37$

$\displaystyle 29$

Correct answer:

$\displaystyle 31$

Explanation:

The mean is the same as the average. To find the mean, use the following formula:

$\text{Mean}=\frac{\text{Sum of all values}}{\text{Number of values}}$ $\displaystyle \text{Mean}=\frac{\text{Sum of all values}}{\text{Number of values}}$

$\text{Mean}=\frac{(-10)+50+6+78}{4}$ $\displaystyle \text{Mean}=\frac{(-10)+50+6+78}{4}$

$\text{Mean}=\frac{134+(-10)}{4}$ $\displaystyle \text{Mean}=\frac{134+(-10)}{4}$

$\text{Mean}=\frac{124}{4}$ $\displaystyle \text{Mean}=\frac{124}{4}$

$\text{Mean}=31$ $\displaystyle \text{Mean}=31$

Report an Error

Example Question #71 : How To Find Mean

Find the mean for the following set of numbers:

$\displaystyle -100$ , $\displaystyle 45$ , and $\displaystyle 55$

Possible Answers:

$\displaystyle 35$

$\displaystyle 15$

$\displaystyle 0$

$\displaystyle -30$

Correct answer:

$\displaystyle 0$

Explanation:

The mean is the same as the average. To find the mean, use the following formula:

$\text{Mean}=\frac{\text{Sum of all values}}{\text{Number of values}}$ $\displaystyle \text{Mean}=\frac{\text{Sum of all values}}{\text{Number of values}}$

$\text{Mean}=\frac{(-100)+45+55}{3}$ $\displaystyle \text{Mean}=\frac{(-100)+45+55}{3}$

$\text{Mean}=\frac{0}{3}$ $\displaystyle \text{Mean}=\frac{0}{3}$

$\text{Mean}=0$ $\displaystyle \text{Mean}=0$

Report an Error

Example Question #71 : How To Find Mean

Consider the following set of numbers:

$\displaystyle 25, 27, 36, 32, 41, 22, 28, 33, 44, 51, 37, 32$

Find the mean of the set.

Possible Answers:

$\displaystyle 34$

34.7 $\displaystyle 34.7$

34.2 $\displaystyle 34.2$

33.8 $\displaystyle 33.8$

Correct answer:

$\displaystyle 34$

Explanation:

To find the mean of a set of numbers, we add all of the numbers together and then divide by the number of numbers in the set:

$\displaystyle 25+27+36+32+41+22+28+33+44+51+37+32=408$

$\frac{408}{12}=34$ $\displaystyle \frac{408}{12}=34$

From this we find that the mean of the set is 34.

Report an Error

View Algebra Tutors

Musa
Certified Tutor

University of Massachusetts-Dartmouth, Bachelor of Science, Electrical Engineering. New Jersey Institute of Technology, Maste...

View Algebra Tutors

Scott
Certified Tutor

Florida State University, Bachelor of Science, Applied Mathematics. Florida State University, Bachelor of Science, Astrophysi...

View Algebra Tutors

Patricia
Certified Tutor

Mount St Mary's University, Bachelor of Education, Mathematics Teacher Education. Lesley University, Masters in Education, Ed...

All Algebra 1 Resources

10 Diagnostic Tests 557 Practice Tests Question of the Day Flashcards Learn by Concept

Popular Subjects

Chemistry Tutors in Chicago, English Tutors in Houston, English Tutors in Los Angeles, Physics Tutors in Washington DC, Math Tutors in Boston, Statistics Tutors in Miami, Chemistry Tutors in San Francisco-Bay Area, French Tutors in San Diego, GMAT Tutors in Phoenix, MCAT Tutors in Atlanta

Popular Courses & Classes

MCAT Courses & Classes in Phoenix, LSAT Courses & Classes in Boston, Spanish Courses & Classes in San Diego, MCAT Courses & Classes in San Diego, SAT Courses & Classes in Denver, GRE Courses & Classes in Miami, SSAT Courses & Classes in Los Angeles, ACT Courses & Classes in San Francisco-Bay Area, GRE Courses & Classes in Los Angeles, LSAT Courses & Classes in San Francisco-Bay Area

Popular Test Prep

ACT Test Prep in San Francisco-Bay Area, MCAT Test Prep in Atlanta, GRE Test Prep in Denver, GMAT Test Prep in Los Angeles, GRE Test Prep in Boston, ACT Test Prep in Denver, ACT Test Prep in Philadelphia, MCAT Test Prep in San Francisco-Bay Area, LSAT Test Prep in Los Angeles, SAT Test Prep in Dallas Fort Worth

DMCA Complaint

If you believe that content available by means of the Website (as defined in our Terms of Service) infringes one or more of your copyrights, please notify us by providing a written notice (“Infringement Notice”) containing the information described below to the designated agent listed below. If Varsity Tutors takes action in response to an Infringement Notice, it will make a good faith attempt to contact the party that made such content available by means of the most recent email address, if any, provided by such party to Varsity Tutors.

Your Infringement Notice may be forwarded to the party that made the content available or to third parties such as ChillingEffects.org.

Please be advised that you will be liable for damages (including costs and attorneys’ fees) if you materially misrepresent that a product or activity is infringing your copyrights. Thus, if you are not sure content located on or linked-to by the Website infringes your copyright, you should consider first contacting an attorney.

Please follow these steps to file a notice:

You must include the following:

A physical or electronic signature of the copyright owner or a person authorized to act on their behalf; An identification of the copyright claimed to have been infringed; A description of the nature and exact location of the content that you claim to infringe your copyright, in \ sufficient detail to permit Varsity Tutors to find and positively identify that content; for example we require a link to the specific question (not just the name of the question) that contains the content and a description of which specific portion of the question – an image, a link, the text, etc – your complaint refers to; Your name, address, telephone number and email address; and A statement by you: (a) that you believe in good faith that the use of the content that you claim to infringe your copyright is not authorized by law, or by the copyright owner or such owner’s agent; (b) that all of the information contained in your Infringement Notice is accurate, and (c) under penalty of perjury, that you are either the copyright owner or a person authorized to act on their behalf.

Send your complaint to our designated agent at:

Charles Cohn Varsity Tutors LLC
101 S. Hanley Rd, Suite 300
St. Louis, MO 63105

Or fill out the form below:

Do not fill in this field

Contact Information

* Full legal name

Company name

* Phone number

* Email address

Address

* Address1

Address2

* City

* State

* Zipcode

* Country

Complaint Details

* URL of copyrighted work (where your original material is located)

* Please describe the copyrighted work so that it may be easily identified

I am the owner, or an agent authorized to act on behalf of the owner of an exclusive right that is allegedly infringed.

I have a good faith belief that the use of the material in the manner complained of is not authorized by the copyright owner, its agent, or the law.

This notification is accurate.

I acknowledge that there may be adverse legal consequences for making false or bad faith allegations of copyright infringement by using this process.

* Signature (your digital signature is legally binding)

HIGH SCHOOL

GRADUATE SCHOOL

K-8

Search 50+ Tests

math tutoring

science tutoring

foreign languages

elementary tutoring

other

Search 350+ Subjects

Algebra 1 : Statistics and Probability

Study concepts, example questions & explanations for Algebra 1

All Algebra 1 Resources

Example Questions

Example Question #18 : Mean

Example Question #71 : Statistics And Probability

Example Question #71 : How To Find Mean

Example Question #71 : How To Find Mean

Example Question #71 : How To Find Mean

Example Question #76 : Statistics And Probability

Example Question #77 : Statistics And Probability

Example Question #73 : Statistics And Probability

Example Question #71 : How To Find Mean

Example Question #71 : How To Find Mean

All Algebra 1 Resources

Report an issue with this question

DMCA Complaint

Contact Information

Address

Complaint Details

Email address:
Your name:
Feedback: