1. A student scored 65bon a calculus test that had a mean of 50, What is the z score? *

3 points

a. 4,5

b. 3.5

c. 2.5

d. 1.5

2.divide the data set into 100 equal groups

a.Percentile

b.Decile

c.Quartiles

d.Range

3..Divide the distribution into four groups *

a .Percentile

b.Decile

c.Quartiles

d.Range

4. P corresponds to *

a) Q

b) D

c) IQR

d) Midrange

5. Find the standard deviation of the given data: 10,20,30,40,50

a.15.81

b.16.81

c.17.81

d.18.81