42% of U.S adults have very little confidence in news papers . You randomly select 10 U.S adults . Find the probability that the number of U.S adults who have very little confidence in newspapers is :   A) exactly 5 b.) at least 6  c) less than four

n a large population, 46% of the households own DVD recorders. A simple random sample of 100 households from this population is to be contacted and the sample proportion computed.  Which expression represents the probability that more than half the households sampled will own a DVD recorder?

The Wilson family had 9 children. Assuming that the probability of a child being a girl is 0.5, find the probability that the Wilson family had: at least 6 girls? At most 4 girls?

Answering the following: A. Find the probability of drawing a catd that is red with an even number from a full deck of cards.B. Find the probability of drawing a card that is black without a number from a full deck of cards.

In a sack there are 18 marbles:7 marbles are red and the rest are black. What is the probability of drawing 3 red marbles in a row (without returning the marbles after each draw)? a. 0.036 b. 0.059 c. 0.389 d. 0.043

A factory produces a particular electrical component. On average, the probability that a component will be faulty is 0.16, independently of each other. The company sells the electrical component in a box of 7. Calculate the probability of having at least 1 faulty components. (2 d.p.)

The probability of snow in Alaska is 0.8. The roads close on 40% of snowy days. On 18% of days the roads are open and it doesn't snow. In what percentage of days are the roads in Alaska open? a. 20 b. 66 c. 90 d. 34