Author Question: If A and B are mutually exclusive events, then P(A B) = 0. a. True b. False Indicate whether the ... (Read 106 times)

OSWALD · **on:** Jun 24, 2018

If A and B are mutually exclusive events, then P(A B) = 0.
a. True
b. False
Indicate whether the statement is true or false

Question 2

In the past, 35 of the students at ABC University were in the Business College, 35 of the students were in the Liberal Arts College, and 30 of the students were in the Education College. To see whether or not the proportions have changed, a sample of 300 students was taken. Ninety of the sample students are in the Business College, 120 are in the Liberal Arts College, and 90 are in the Education College. The hypothesis is to be tested at the 5 level of significance. The critical value from the table equals
a. 1.645
b. 1.96
c. 5.991
d. 7.815