# Lesson Worksheet: Mean Mathematics

In this worksheet, we will practice calculating the mean of a set of whole numbers.

Q1:

Find the mean of the values 15, 20, 37, 43, 13, 34, 41, and 39.

Q2:

The table shows the number of hours that two students spent studying on each day of a week. Calculate the mean number of hours spent studying by student (B).

 Student (A) Student (B) 5 7 7 7 6 7 3 7 6 4 8 3 4 3

Q3:

The table shows the marks that four students received in their end of year exams. Calculate the mean mark of student (C).

StudentsMathematicsChemistryPhysicsBiologyHistory
(A) 10 11 12 13 14
(B) 9 10 8 7 6
(C) 8 13 7 5 12
(D) 14 13 9 11 8

Q4:

The mean of the given data set is 7. Find the missing value .

 9 6 3 8 5 𝑥

Q5:

Which of the following data sets has a mean of 59?

• A52, 76, 23, 50, 15
• B81, 34, 85, 21, 76
• C74, 79, 27, 59, 56
• D90, 64, 49, 13, 50
• E11, 50, 21, 72, 48

Q6:

The table shows the total number of votes that each act received in a local talent show.

SingerDancerComedianAcrobatMagicianMusician
14293672311

Find the mean number of votes.

Describe what the mean represents.

• AThe difference between the largest value and the smallest value in the list
• BThe average between the third and fourth terms

Q7:

Calculate the mean of the values .

Q8:

The 6 most recent customers at a bookstore bought the following numbers of books: 3 books, 2 books, 2 books, 2 books, 4 books, and 5 books. What is the mean number of books bought?

Q9:

Naser has the following data: 18, , 11, 15.

If the mean is 13, find the value of .

Q10:

Given that the mean of the values and 18 is 10, find the value of .