Event A occurs with probability 0.4. If events A and B are not disjoint, then

a P(B) < 0.6

b P(B) ≥ 0.6.

c P(B) > 0.6.

d P(B) < 0.6.

Step 1:You are tossing a balanced die that has probability  of coming up 1 on each toss.

Tosses are independent. We are interested in how long we must wait to get the first 1.

The probability of a 1 on the first toss is . 

What is the probability that the first toss is not a 1 and the second toss is a 1?

Choose the correct answer; ( is the probability-rounded to four decimal places):

a p=0.1250 b p=0.1666 c p=0.8333 d p=0.1389

In 2015, it is widely reported on the World Wide Web that 54% of all Americans older than18 drink coffee daily. Suppose that in a random sample of 100 Americans older than 18, 62 said that they drink coffee every day. In this scenario the value of p is:

62 0.54 100 0.62