1. MISSING VALUES

2. Steps to find the missing value when given the mean
Count the given values(including the missing value)=#
Multiply this number by the given mean. #✖️Mean=#
Total all the given values=#
Subtract#-#= Answer

3. EXAMPLE 1
4 , 3 , 1, 4 , ? What value will give a mean of 3?

4. EXAMPLE 3
Below is a chart that shows John’s science quiz scores for the past unit.
Name Quiz Quiz Quiz Quiz Quiz Mean
John ?
What does John need to score on the next quiz to have a mean of 95 for all five of this quizzes?

5. MISSING VALUES
Competition

6. Brandon had the following scores for his Quarter 1 tests
Brandon had the following scores for his Quarter 1 tests. What does Brandon need to get on his 5th test to have a mean (average) score of 90?
Test Number
Score #1 83 #2 95 #3 92 #4 87 #5 ?

7. Jamal’s goal is to exercise for a mean of 45 minutes per day for one week. For the first 6 days of the week, he exercised 35, 40, 37, 42, 45 and 50 minutes.
What is the number of minutes Jamal must exercise on the 7th day to week his goal exactly?

8.
Abby will take one more quiz this year. If the highest possible score is 100, is it possible for Abby to have a quiz average (mean) of 95?

9. Victoria practiced piano for the number of minutes listed below this week:
35, 40, 30, 25, ?
How many more minutes does Victoria need to practice this week to have practiced an average of 35 minutes?

10. The following table shows the number of apples on each apple tree in Craig's backyard.
If the mean of the data set is 35 apples, find the number of apples on the Granny Smith tree.

11. The following table shows the number of snow days each school district in Trene County had last winter.
If the mean of the data set is 5 snow days, find the number of snow days in District 241,

12. The following table shows the number of attendees at each of the private dance events hosted by Fenel Arrangements.
If the mean of the data set is 41 attendees, find the number of attendees at Harry's Hoedown.

13. If the mean of the data set is 60m, find the missing height.
Below are the heights of Dina's favorite snow sledding hills (in meters).
If the mean of the data set is 60m, find the missing height.

14. Below is the number of games each quarterback in the Northwest division has played this season.
If the mean of the data set is 2 games, find the missing number of games.

15. The following data points represent the number of points scored last basketball game by each player on the Dragons basketball team.
5,8,11,7,?
If the mean of the data set is 8 points, find the missing number of points.

16. The following data points represent the number of remote controllers each student in Lena's video game club owns.
1,0,3,?
If the mean of the data set is 2 remote controllers, find the missing number of remote controllers.

17. The following table shows last year's revenue for each Herman's Hoagies location.
If the mean of the data set is 158 thousand dollars, find the revenue for the Granton location.

18. The following data points represent the number of chicken nuggets on each family member's plate.
1,3,0,6,?
If the mean of the data set is 3 chicken nuggets, find the missing number of chicken nuggets.

19. If the mean of the data set is 3 puppets, find the number of puppets Marco made.

20. If the mean of the data set is 7 raisins, find the number of raisins in each scoop of Great4U.