Question 1:

The simple interest on $500 for 3.5 years at 9.5% p.a is

A.$ 231.25

B.$ 0.33

C.$ 47.50

D.$ 166.25

Question 2

Suppose that Z ~ N(0,1) and we know that P(Z < z) = 0.02, the most feasible value for z score is

A.=0.02

B.>0

C.<0

D.=0

Question 3

Suppose that Z ~ N(0,1), P(Z=0.25) is

A.=0.25

B.>0

C.<0

D.=0

Question 4

A basketball player takes 10 independent free throws with a probability of 0.35 of getting a basket on each shot. Let X be the number of baskets he gets, P(X=3) is

A.0.513

B.0.486

C.0.261

D.0.252

Question 5

A basketball player takes 10 independent free throws with a probability of 0.35 of getting a basket on each shot. Let X be the number of baskets he gets, P(X<3) is

A.0.513

B.0.486

C.0.261

D.0.252

Question 6

In a meeting, Matt estimates the average miles per gallon (mpg) of the fleet cars is 24 mpg. With a certain level of confidence, he announces the actual mpg is in the 22 to 26 mpg range. What is the Margin of Error?

A.4 mpg

B.0.5 mpg

C.24 mpg

D.2 mpg

Question 7

A sample of n = 100 items from a population with a standard deviation () of 5kg has a mean weight of 35kg. 95% confidence intervals for the population mean () is

A.[34.02; 36.96]

B.[33.04; 35.98]

C.[33.04; 35.96]

D.[34.02; 35.98]