PSAT Math : How to find mode

Study concepts, example questions & explanations for PSAT Math

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Example Questions

Example Question #1 : How To Find Mode

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Looking at the table, what is the difference of the mean minus the mode.

Possible Answers:

0.5

1.0

–0.5

–1.0

Correct answer:

–0.5

Explanation:

The mode is 3 and subtracting 3 from 2.5 gives -0.5.

Example Question #2 : How To Find Mode

Find the mode of the following set of numbers:

1, 6, 3, 6, 5, 9 

Possible Answers:

5

9

6

8

Correct answer:

6

Explanation:

Mode is the most frequently occuring number in a set. 6 appears most frequently since there are 2 sixes but the rest of the numbers only appear once. The mode is 6

Example Question #3 : How To Find Mode

Find the mode in this set of numbers:

 

2, 100, 52, 97, 1, 7, 22, 19, 100

Possible Answers:

1

2

none of these

97

100

Correct answer:

100

Explanation:

The mode is the number that appears the most

Example Question #106 : Statistics

Find the mode from the following set of numbers

1, 4, 8, 17, 8, 8, 15, 21, 32, 17

Possible Answers:

17

15

8

4

21

Correct answer:

8

Explanation:

The mode is the number that appears the most in a given set of numbers

Example Question #4 : How To Find Mode

Find the mode.

\dpi{100} \small 9,6,9,6,5,9,8,3

Possible Answers:

\dpi{100} \small 3

\dpi{100} \small 9

\dpi{100} \small 8

\dpi{100} \small 6

\dpi{100} \small 5

Correct answer:

\dpi{100} \small 9

Explanation:

The mode is the number that appears the most often. 9 appears three times.

Example Question #5 : How To Find Mode

What is the mode of the following set of numbers?

24, 38, 26, 27, 7, 27, 34, 12, 13
Possible Answers:

Correct answer:

Explanation:

The mode is the number that appears the most in a given set of numbers.

Example Question #6 : How To Find Mode

Consider the following dataset:

The arithmetic mean of the dataset is .

The median of the dataset is .

The range of the dataset is .

The mode of the dataset is .

Which of the following statements is true?

Possible Answers:

Correct answer:

Explanation:

In general:

In this case the mean is:

To obtain the median, arrange the observations from smallest to largest:

When there is an odd number of observations, the median is the middle value. In this case:

The range is the difference between the largest and smallest value:

The mode is the value that occurs most often in the dataset:

Since:

we can conclude:

Example Question #7 : How To Find Mode

Marker Colors

Students

Blue

13

Pink

10

Orange

5

Brown

5

Green

7

The above chart shows the number of students in a class who chose each of the five marker colors available.

What is the mode of the above chart?

Possible Answers:

Correct answer:

Explanation:

The mode of a problem is the most common number, i.e. the number that appears the most times in a given set of data. In this case, only one number is repeated. Therefore, the mode is 5.

Example Question #8 : How To Find Mode

Find the mode(s) of the following set of numbers:

Possible Answers:

and

and

and

Correct answer:

and

Explanation:

The mode is the most frequently represented number in a data set. In this instance, that is and . There can be more than one mode.

Example Question #9 : How To Find Mode

Find the mode of the following set of numbers:

Possible Answers:

Correct answer:

Explanation:

The mode is the most frequently occurring number in a data set. In this instance, that is .

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