If adult male heights are normally distributed with a mean of 185 cm and a standard deviation of 6 cm, how high, in cm, should an aircraft lavatory door be to ensure that 99 percent of adult males will not have to stoop as they enter?

a. 195

b. 199

c. 200

d. 204

Consider two random events A and B. Event Ac is the complement of event A, and Bc is the complement of B. P(A) =0.74. P(B) = 0.13, and P(A and B) =0.0962. Then P(A or B) equals:

a. 0.7738

b. 0.87

c. 0.5726

d. 0.4274

For a certaincandy,15 % of the pieces areyellow, 11% are red,17% are blue, and the rest brown. Assume you have an infinite supply of these candy pieces from which to draw. If you pick three pieces in a row,what is the probability that the third one is the first red candy?

a. 0.989

b. 0.011

c. 0.087

d. 0.913