1-If the likelihood of a tagged order form is 0.1, what is the probability that there are two tagged order forms in the sample of six?

a.

P=0.1136

b.

P=0.0984

c.

P=0.00486

d.

P=0.2036

2-The probability that a person owns a microwave oven is 0.55, that a person owns a compact disk player is 0.45, and that a person owns both a microwave and a CD player is 0.11. Find the probability that a person owns either a microwave or a CD player, but not both.

a.

0.75

b.

0.66

c.

0.85

d.

0.78

3-A student scored 66 on a general science test where the class mean and standard deviation were 82 and 8, respectively; he also scored 53 on a psychology test where the class mean and standard deviation were 58 and 3, respectively. In which class was his relative position higher?

a.

psychology with z score = -1.67

b.

Science with z score = -1.67

c.

Science with z score = -0.75

d.

psychology with z score =-2.2