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Algebra 1 : Algebra 1

Study concepts, example questions & explanations for Algebra 1

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All Algebra 1 Resources

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

Example Questions

Example Question #84 : How To Find Mean

What is the mean of 6,-3,7, and ?

Possible Answers:

Correct answer:

Explanation:

In order to find the mean of a set of numbers, we divide the sum of the numbers by the amount of numbers in the set. Since we have numbers in the set, we can calculate the mean as the following:

$\frac{6+(-3)+7+(-2)}{4}$

$=\frac{3+5}{4}$

$=\frac{8}{4}$

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Example Question #83 : Statistics And Probability

What is the mean of 1,-1 and ?

Possible Answers:

$\frac{4}{5}$

$\frac{1}{2}$

$\frac{2}{3}$

$\frac{3}{5}$

Correct answer:

$\frac{2}{3}$

Explanation:

In order to find the mean of a set of numbers, we divide the sum of the numbers by the amount of numbers in the set. Since we have numbers in the set, we can calculate the mean as the following:

$\frac{1+(-1)+2}{3}$

$=\frac{2}{3}$

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Example Question #84 : Statistics And Probability

What is the mean of 2,-4,6, and ?

Possible Answers:

Correct answer:

Explanation:

In order to find the mean of a set of numbers, we divide the sum of the numbers by the amount of numbers in the set. Since we have numbers in the set, we can calculate the mean as the following:

$\frac{2+(-4)+6+8}{4}$

$=\frac{14-2}{4}$

$=\frac{12}{4}$

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Example Question #85 : Statistics And Probability

What is the mean of 10,9,8, and ?

Possible Answers:

$\frac{23}{2}$

$\frac{17}{2}$

$\frac{19}{2}$

$\frac{25}{2}$

$\frac{21}{2}$

Correct answer:

$\frac{17}{2}$

Explanation:

In order to find the mean of a set of numbers, we divide the sum of the numbers by the amount of numbers in the set. Since we have numbers in the set, we can calculate the mean as the following:

$\frac{10+9+8+7}{4}$

$=\frac{34}{4}$

$=\frac{17}{2}$

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Example Question #87 : How To Find Mean

What is the mean of $\frac{1}{2},\frac{1}{4}$ and $\frac{1}{3}$ ?

Possible Answers:

$\frac{4}{13}$

$\frac{13}{36}$

Does Not Exist

$-\frac{4}{13}$

$-\frac{13}{4}$

Correct answer:

$\frac{13}{36}$

Explanation:

In order to find the mean of a set of numbers, we divide the sum of the numbers by the amount of numbers in the set. Since we have numbers in the set, we can calculate the mean as the following:

$\frac{\frac{1}{2}+\frac{1}{4}+\frac{1}{3}}{3}$

$=\frac{\frac{6}{12}+\frac{3}{12}+\frac{4}{12}}{3}$

$=\frac{\frac{13}{12}}{3}$

$=\frac{13}{12}\times\frac{1}{3}$

$=\frac{13}{36}$

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Example Question #91 : Statistics And Probability

What is the mean of 6,9,12 and ?

Possible Answers:

$\frac{25}{2}$

$\frac{21}{2}$

$\frac{23}{2}$

Correct answer:

$\frac{21}{2}$

Explanation:

In order to find the mean of a set of numbers, we divide the sum of the numbers by the amount of numbers in the set. Since we have numbers in the set, we can calculate the mean as the following:

$\frac{6+9+12+15}{4}$

$=\frac{30+12}{4}$

$=\frac{42}{4}$

$=\frac{21}{2}$

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Example Question #92 : Statistics And Probability

What is the mean of 4,-4,6, and ?

Possible Answers:

$-\frac{1}{4}$

$\frac{1}{2}$

$\frac{1}{4}$

$-\frac{1}{2}$

Correct answer:

$-\frac{1}{4}$

Explanation:

In order to find the mean of a set of numbers, we divide the sum of the numbers by the amount of numbers in the set. Since we have numbers in the set, we can calculate the mean as the following:

$\frac{4+(-4)+6+(-7)}{4}$

$=\frac{6-7}{4}$

$=-\frac{1}{4}$

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Example Question #91 : How To Find Mean

What is the mean of 2,4,6,8 and ?

Possible Answers:

Correct answer:

Explanation:

In order to find the mean of a set of numbers, we divide the sum of the numbers by the amount of numbers in the set. Since we have numbers in the set, we can calculate the mean as the following:

$\frac{2+4+6+8+10}{5}$

$=\frac{10+10+10}{5}$

$=\frac{30}{5}$

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Example Question #1511 : Algebra 1

Consider the following set of numbers:

61, 65, 68, 71, 72, 72, 72, 74, 79, 82, 86, 88, 88

Find the mean of the set.

Possible Answers:

74.65

77.51

75.89

75.23

Correct answer:

75.23

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:

61+65+68+71+72+72+72+74+79+82+86+88+88= 978

$\frac{978}{13}=75.23$

From this we can find that the mean of the set is 75.23.

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Example Question #1512 : Algebra 1

What is the mean of 1, 2, 4, and 6?

Possible Answers:

$\frac{9}{2}$

$\frac{13}{4}$

$\frac{3}{2}$

Correct answer:

$\frac{13}{4}$

Explanation:

The mean is the average of the set of numbers. Add all the numbers given and divide the quantity by the total amount of numbers.

$m=\frac{1+2+4+6}{4} = \frac{13}{4}$

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Algebra 1 : Algebra 1

Study concepts, example questions & explanations for Algebra 1

All Algebra 1 Resources

Example Questions

Example Question #84 : How To Find Mean

Example Question #83 : Statistics And Probability

Example Question #84 : Statistics And Probability

Example Question #85 : Statistics And Probability

Example Question #87 : How To Find Mean

Example Question #91 : Statistics And Probability

Example Question #92 : Statistics And Probability

Example Question #91 : How To Find Mean

Example Question #1511 : Algebra 1

Example Question #1512 : Algebra 1

All Algebra 1 Resources

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