1. Calculate the meanfor samples where:

a. n=10 sum of x=85 ?

b. n= 16 sum of x = 400 ?

c. n =45 sum of x =35 ?

d. n=18 sum of x =242 ?

2. Calculate the mean, median, and modefor each of the following samples:

a. 7, -2, 3, 3, 0, 4

b. 2, 3, 5, 3, 2, 3, 4, 3, 5, 1, 2, 3, 4

c. 51, 50, 47, 50, 48, 41, 59, 68, 45, 37

3. Calculate the varianceand standard deviationfor samples where:

a. n=10, sum of x^2 = 84, sum of x = 20

b. n=40, sum of x^2 = 380, sum of x = 100

c. n=20, sum of x^2 = 18, sum of x = 17

4. Calculate the range, variance, and standard deviation of the following samples:

a. 39, 42, 40, 37, 41

b. 100, 4, 7, 96,80,3,1,10,2

c. 100, 4, 7, 30, 80, 30,42, 2

1. The formula to calculate the mean: Mean = sum of x/n.

a) Mean = 85/10

= 8.5

b) Mean = 400/16

= 25

c) Mean = 35/45

= 0.78

d) Mean = 242/18

= 13.44

2. To determine the median, you must arrange all the scores within the data set in ascending order and find the middle number. If there is an even number of scores, take …

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