SSAT Middle Level Math : How to find range

Study concepts, example questions & explanations for SSAT Middle Level Math

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Example Questions

Example Question #1 : Find Measures Of Center, Variability, And Patterns In Data: Ccss.Math.Content.6.Sp.B.5c

The difference between 2996 and 4515 is closest to 

Possible Answers:

\displaystyle 1500

\displaystyle 2000

\displaystyle 1000

\displaystyle 2500

\displaystyle 3000

Correct answer:

\displaystyle 1500

Explanation:

Round 2996 up to 3000 and 4515 down to 4500.  The difference between 4500 and 3000 is 1500.

Example Question #1 : Find Range

Find the range of this set of numbers:

89, 54, 76, 89, 94.

Possible Answers:

\displaystyle 40

\displaystyle 78

\displaystyle 54

\displaystyle 89

\displaystyle 94

Correct answer:

\displaystyle 40

Explanation:

First, order the numbers from least to greatest, then find the difference of the highest number and the lowest number.

 \displaystyle 54, 76, 89, 89, 94

\displaystyle 94-54=40

Answer: The range of this set of numbers is 40.

Example Question #1 : Find Range

Find the range of this set of numbers:

525, 436, 142, 213, 641.

Possible Answers:

\displaystyle 436

\displaystyle 428

\displaystyle 499

\displaystyle 391

Correct answer:

\displaystyle 499

Explanation:

First, order the numbers from least to greatest. Then, find the difference between the largest and the smallest number.

\displaystyle 142, 213, 436, 525, 641.

\displaystyle 641-142=499

Answer: The range is \displaystyle 499.

Example Question #1 : Find Range

What is the range of the set of numbers \displaystyle 45\displaystyle 6\displaystyle 32\displaystyle 11\displaystyle 2?

Possible Answers:

\displaystyle 34

\displaystyle 26

\displaystyle 30

\displaystyle 43

\displaystyle 19.2

Correct answer:

\displaystyle 43

Explanation:

The range of a set of numbers is the difference between the largest and smallest numbers. In this set, \displaystyle 45 is the largest number and \displaystyle 2 is the smallest number. The range, or difference, between these two numbers, is \displaystyle 43.

Example Question #2 : Find Range

Find the range of this set of numbers:

\displaystyle 546, 321, 789, 601, 751

Possible Answers:

\displaystyle 468

\displaystyle 602

\displaystyle 430

\displaystyle 601

Correct answer:

\displaystyle 468

Explanation:

First order the numbers in order from least to greatest:

\displaystyle 321, 546, 601, 751, 789

Then, find the difference of the largest and smallest number in the set:

\displaystyle 789-321=468.

Answer: The range is \displaystyle 468

Example Question #2 : Find Range

What is the range of the set of numbers:

 \displaystyle 106, 94, 95, 89, 102 

Possible Answers:

\displaystyle 17

\displaystyle 16

\displaystyle 106

\displaystyle 89

\displaystyle 15

Correct answer:

\displaystyle 17

Explanation:

The ragne of a set of numbers is the difference between the largest and smallest numbers. In this set, \displaystyle 106 is the largest number and \displaystyle 89 is the smallest number. The range, or difference, between these two numbers, is \displaystyle 106-89=17.

Example Question #2 : Find Range

What is the range of the following data set?

\displaystyle \small 1321, 1472, 1731, 1137, 1820

Possible Answers:

\displaystyle \small 1472

\displaystyle \small 683

\displaystyle \small 1496

\displaystyle 544

\displaystyle \small 499

Correct answer:

\displaystyle \small 683

Explanation:

The range of a data set is equal to the difference between the largest \displaystyle \small (1820) and the smallest \displaystyle \small (1137) numbers.

\displaystyle \small range=1820-1137=683

Example Question #1 : Find Range

Find the range of this set of numbers:

\displaystyle 57,59,51,53,54

Possible Answers:

\displaystyle 8

\displaystyle 7

\displaystyle 54

\displaystyle 57

Correct answer:

\displaystyle 8

Explanation:

First order the numbers from least to greatest:

\displaystyle 51, 53, 54, 57, 59

Then subtract the smallest number from the largest number:

\displaystyle 59-51=8

Answer: \displaystyle 8

Example Question #2 : Find Range

Given the following set of numbers, find the range. 

\displaystyle \textup{3, 8, 12, -5, 18, -7, 12, 2, 9}

Possible Answers:

\displaystyle 18

\displaystyle 25

\displaystyle -7

\displaystyle 12

Correct answer:

\displaystyle 25

Explanation:

In order to find the range for a set of data, take the largest number and subtract the smallest number. 

In this case, the largest number is \displaystyle 18 and the smallest number is \displaystyle -7

Remember that when we subtract a negative, we are actually adding the absolute value of the numbers: 

Therefore:

\displaystyle 18 - (-7) is the same as \displaystyle 18 + 7 

\displaystyle 18+7=25

Example Question #2 : How To Find Range

Use the following data set to answer the question:

\displaystyle 4, 8, 6, 10, 4, 9, 5, 2, 4

Find the range.

Possible Answers:

\displaystyle 10

\displaystyle 8

\displaystyle 6

\displaystyle 5

\displaystyle 4

Correct answer:

\displaystyle 8

Explanation:

To find the range, we will find the smallest number and the largest number.  Then, we will find the difference of those two numbers.  

So, given the set

\displaystyle 4, 8, 6, 10, 4, 9, 5, 2, 4

we can see the smallest number is 2 and the largest number is 10.  Now, we will find the difference.  We get

\displaystyle 10-2=8

Therefore, the range of the data set is 8.

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