Name________________________

 

CALCULATING THE MEAN #4

 

 

Directions: Calculate the mean for each set of numbers below.  To find the mean of a set of numbers, add all of the data together, then divide that sum by the amount of numbers in the set.

 

Example:  Mike received the following scores on his Math tests:  100, 90, 80, 100, 90.  Find his mean test score.

 

            100 + 90 + 80 + 100 + 90 = 460 total points              460/5 tests gives you a mean of 92 points                                                                                                                            

 

1)      Steve received the following scores on his Math tests:  100, 80, 70, 100, 60, 70.  Find his mean score.

 

 

2)      Melissa received the following amounts as graduation gifts:  $20, $25, $25, $50, $10, $20, $20, $30.  Find the mean amount of her gifts.

 

 

3)      Derrick scored the following amount of points during his basketball season: 12, 8, 10, 8, 2, 12, 14, 10, 8, 6. Find his mean scoring average.

 

 

4)      Jennifer recorded the following temperatures while researching her science project:  90, 60, 55, 60, 55, 75, 75, 70, 75, 80, 75.  Find the mean temperature that she recorded.

 

 

5)      Carlos watched 3 hours of TV on Monday, 2 on Tuesday, 1 on Wednesday, 0 on Thursday, 3 on Friday, 2 on Saturday, and 3 on Sunday.  What is the mean number of hours of TV that he watched that week?

 

 

6)      DeAndre earned the following amount while working his summer job each week:  $100, $80, $90, $60, $100, $20, $80, $90, $100, $80, $80.  What is the mean amount that he earned each week?

  

 

7)      Don read the following number of pages of his favorite book each night before bed:  10, 20, 10, 20, 40, 10, 10, 20, 40.  What is the mean number of pages that he read every night?

 

 

8)      Michelle did the following number of sit-ups every day to get ready for soccer season:  25, 25, 30, 40, 50, 50, 50, 50.  What is the mean number of sit-ups that she did each day?

 

 

9)      Anthony earned the following amount for baby sitting his brother over winter break:  $5, $10, $10, $10, $5, $10, $20, $10, $5, $20, $20, $20, $10, $5, $5.  What is mean amount that he earned each day?

 

 

10)  Jason spent the following number of minutes on his homework last week:  10, 20, 30, 20, 20, 20, 20.  What is the mean amount of time that he spent on his homework?