The value ofrmay lie within an interval of values ranging from ________.

A. -1.00 to +1.00-

B.10.00 to 0.00

C. 0.00 to -1.00

D. 0.00 to +10.00

2, Crime rates usually are positively related to population density. Thus you expect that ________.

A. population density and crime rate are not related

B. higher population density is associated with lower crime rates

C. high population density areas would have low crime rates

D. higher population density is associated with higher crime rates

3, The population standard deviation is represented by ________.

A. S

B.

C. ²

D. s