Algebra 1 : Algebra 1

Study concepts, example questions & explanations for Algebra 1

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Example Questions

Example Question #83 : How To Find Median

Mr. Black's algebra class took a quiz, and the scores that the students received were: .

What was the median score that Mr. Black's class received on the quiz?

Possible Answers:

Correct answer:

Explanation:

To find the median of a set of numbers, we first must arrange the numbers in order from least to greatest. The scores on Mr. Black's quiz were .

Placed in order, these scores were:

Now that we have our numbers arranged in order, to find the median, all we need to do it find the number that is in the exact middle of the series. There were  scores given for Mr. Black's quiz, so the 6th score in the series is our median - in this case

So,  is the median score for Mr. Black's quiz.

Example Question #84 : How To Find Median

Frank is in a book club with  other people. Their ages are .

What is the median age of the members of Frank's book club?

Possible Answers:

Correct answer:

Explanation:

The find the median of a group of numbers, the first think we want to do is put the numbers in order from least to greatest.

The ages for everyone in Frank's book club are .

Put in order from least to greatest, the ages are:

Now that the numbers are in order, we can find the median. The median is the number that is in the middle of the sequence. Since there are  ages total in our list, and  is an even number, there is no single age that is in the exact middle of the list. So, to find the median, we will take the average (the 'mean') of the two middle ages. 

 and  and the two middle ages, and the aveage of them is . So, our median is .

Example Question #1711 : Algebra 1

What is the median of ?

Possible Answers:

Correct answer:

Explanation:

In order to find the median of a set of numbers, we must find identify the middle number of the set when all of the set's numbers are arranged in ascending or descending order. Given  we know that the ordered set is  and the median is therefore .

Example Question #84 : How To Find Median

What is the median of ?

Possible Answers:

Correct answer:

Explanation:

In order to find the median of a set of numbers, we must find identify the middle number of the set when all of the set's numbers are arranged in ascending or descending order. Given  we know that the ordered set is  and the median is therefore .

Example Question #286 : Statistics And Probability

What is the median of ?

Possible Answers:

Correct answer:

Explanation:

In order to find the median of a set of numbers, we must find identify the middle number of the set when all of the set's numbers are arranged in ascending or descending order. Given , we already know that the set is in order, but we have an even number of terms so no specific middle term sticks out.

We'll therefore need to average the two middle terms,  and , to find this set's median:

.

Example Question #88 : How To Find Median

Gregory is a very inconsistent bowler. In the 10 frames he bowled he knocked down,  and  pins. Gregory just learned how to find median and would like to find the median number of the pins he knocked down, what is the median?

 

 

Possible Answers:

Correct answer:

Explanation:

To find the median you must first arrange the numbers from smallest to largest.

Then you need to get to the middle number which turns out to be

  and  

To find what the median is of this you must find the average of the two numbers:

Therefore  is your median.

Example Question #1712 : Algebra 1

Find the median.

Possible Answers:

Correct answer:

Explanation:

Median is the middle number in the set. There are seven numbers in the set. So, if we cross out a number on each end, we will only have  remaining. This is our answer. 

Example Question #1713 : Algebra 1

Find the median.

Possible Answers:

Correct answer:

Explanation:

When finding median, we first arrange from smallest to largest. We now have . Since we have six numbers in the set, we will cross out a number on each end. We only are left with . When having even amount of numbers in the set, we just take the average of the two numbers.

Example Question #91 : How To Find Median

Find the median in the following set of numbers:

Possible Answers:

Correct answer:

Explanation:

To find the median of a set of numbers, you arrange the numbers in ascending order and locate the middle number.  

From our set of numbers

We will arrange them in ascending order.  

We get

Now, we find the number located in the middle or center.  

That number is 5.

Therefore, the median is 5.

Example Question #1714 : Algebra 1

Find the median of the following data set:

Possible Answers:

Correct answer:

Explanation:

Find the median of the following data set:

Median is the middle value when the terms are arranged in ascending order. 

Begin by ordering the terms from smallest to greatest:

Next, find the number in the middle. In this case, it is simply 36. Meaning that our answer is 36.

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