Algebra 1 : How to find median

Study concepts, example questions & explanations for Algebra 1

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Example Questions

Example Question #151 : How To Find Median

Find the median:  

Possible Answers:

Correct answer:

Explanation:

The given data set is already in chronological order.

The median is the average of the two numbers in the middle.

Average the center numbers.

The median is .

Example Question #152 : How To Find Median

Solve for the median:  

Possible Answers:

Correct answer:

Explanation:

The given data set is in chronological order.

Since we are given an even set of data, we will need to average the center two numbers to determine the median.

Average the center two numbers.

The median is:  

Example Question #153 : How To Find Median

Solve for the median:  

Possible Answers:

Correct answer:

Explanation:

The median is the central number of a chronologically ordered data set from least to greatest.

Reorder the data set.

Since there are four numbers in the data set, the median is the average of the two central numbers.

The median is:  

Example Question #152 : How To Find Median

Find the median of the data set:  

Possible Answers:

Correct answer:

Explanation:

The median of this set is the central number of the chronological ordered numbers from least to greatest.

Reorder the numbers from least to greatest.

The median is .

Example Question #155 : How To Find Median

Find the median:   

Possible Answers:

Correct answer:

Explanation:

To find the median, first reorganize all the numbers in chronological order.

Average the center two numbers of the even number data set.

The median is:  

Example Question #156 : How To Find Median

On a recent algebra test, students achieved the following scores:

Student 1: 

Student 2: 

Student 3: 

Student 4: 

Student 5: 

Student 6: 

Student 7: 

Student 8: 

Student 9: 

Student 10: 

Student 11: 

What is the median score?

80, 80, 95, 90, 90, 70, 65, 85, 90, 100, 50

50, 65, 70, 80, 80, 85, 90, 90, 90, 95, 100

Possible Answers:

Correct answer:

Explanation:

The easiest way to begin this problem is to put the scores in numerical order:

The median is the middle score. In this case, that answer is .

Example Question #157 : How To Find Median

 

 

Find the median of the following set of numbers:

where i is the imaginary number, .

Possible Answers:

Correct answer:

Explanation:

First, rank the number in increasing order, remember 

Since there is an even number of items in the set, the median is the averaege of the two center numbers:

Median: 

 

Example Question #153 : How To Find Median

Find the median of the following data set:

23, 24, 26, 32, 31, 32, 22, 21, 20, 30

Possible Answers:

26

25

24

26.1

Correct answer:

25

Explanation:

List the values in numerical order:

20, 21, 22, 23, 24, 26, 30, 31, 32, 32

Find the middle two numbers:

24, 26

Find the average of the middle numbers by adding them and dividing by 2:

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