Algebra 1 : Statistics and Probability

Study concepts, example questions & explanations for Algebra 1

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Example Questions

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Example Question #123 : How To Find Range

Find the range of the set of data:  

Possible Answers:

 

Correct answer:

 

Explanation:

The range is the difference between the highest and lowest numbers in the dataset.

The highest number is:  

The lowest number is:  

Subtract both numbers.  Remember that since we are subtracting a quantity, parentheses around the negative number are necessary.

The range is:  

Example Question #121 : How To Find Range

Find the range of the data set given:  

Possible Answers:

Correct answer:

Explanation:

The range is the difference between the highest and lowest numbers.

The lowest number is .

To determine the highest numbers out of the fractions, we will need to change the fractions to a common denominator of 21 and compare the numerators.

We can see that the highest number is:   or 

Subtract the highest number with the smallest number.  Remember to enclose the negative number with parentheses.

The range is:  

Example Question #121 : How To Find Range

Find the range of the data set:  

Possible Answers:

Correct answer:

Explanation:

The range is the difference between the highest and lowest numbers.

The highest number is .

The lowest number is negative five.

Subtract both numbers.  Be sure to enclose the negative number in parentheses.

The answer is:  

Example Question #701 : Statistics And Probability

Find the range of the data set:

19, 13, 9, 16, 22, 21, 19, 18, 10, 12

Possible Answers:

13

14

16

17

18

Correct answer:

13

Explanation:

Put the values in numerical order:

9, 10, 12, 13, 16, 18, 19, 19, 21, 22

Subtract the lowest value from the highest value to find your range:

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