Mean, Mode and Median

In a class of 30 students, the test scores are as follows: 75, 85, 90, 75, 80, 85, 90, 85, 80. What is the mode of the test scores?

• 70

• 90

• 75

• 85

In a class of 20 students, the height (in centimeters) of some students are recorded as follows: 120,125,130,135,140,145,150,155,160,165,170,175,180,185,190,195,200,205,210,215. What is the average height of the students?

• 167.5

• 52.6

• 68

• 129.2

How do you calculate the mean from a provided set of data?

• Subtract the largest number in the set from the smaller number to find the mean.

• It is calculated by choosing a random number from the set and declare it as the mean.

• To find the mean you take the median of the data set and declare it as the mean.

• It is calculated by adding up all the numbers in the set and then dividing by the total number of values.

What is median?

• Is the smallest number in the dataset.

• Is the number that occurs most frequently in the dataset.

• Is the middle value in a dataset when the numbers are arranged in order.

• Is the largest est number in the dataset

What is mean?

• Is the result of adding all the numbers in the dataset together.

• Is the highest value in the dataset.

• Is the middle value of the dataset.

• Is the sum of all the numbers in a dataset divided by the total numbers in the dataset

A group of students participated in a mathematics competition. The scores of the top 10 students are as follows: 92,95,98,100,102,105,110,115,120,125. What is the average score of the top 10 students, rounded to the nearest whole number.

• 60

• 106.2

• 100

• 106

The ages of six siblings are as follows: 12,14,10,11,13 and 15. What is the mean age of the siblings?

• 12.5

• 60

• 10

• 30.5

What is mode?

• Is the average of a set of numbers.

• Is the middle value of a dataset when the numbers are arranged in order.

• Is the value that appears most frequently in a data set.

• Is a fashionable accessory worn by superheroes to conceal their true identities.

The times (in seconds) of two teams in a recent 100m sprint competition are shown below

Team A 9.7 9.8 10.2 11.5 11.5 11.8 16

Team B 10.6 10.8 10.9 11.0 11.0 11.3 11.2

The mean for Team A is 11.5 seconds and Team B is 11.0 seconds

This indicates that Team ______ performed better

• A

• B

Answer explanation

B preforms better their mean is 11.0 secs.

What is the median of the data set?
9, 7, 2, 4, 3, 5, 9, 6, 8, 0, 3, 8

• 7

• 5.5

• 9

• 5