The Chapin Social Insight Test evaluates how accurately the subject appraises other people. In the reference population used to develop the test, scores are approximately normally distributed with mean 20 and standard deviation 4. The range of possible scores is 0 to 48. (a) What proportion of the population has scores below 16 on the Chapin test?

(b) What proportion has scores below 8?

(c) What proportion has scores above 28?

(d) How high a score must you have in order to be in the top quarter of the population in social insight?

What are the first 4 terms in the multiplication pattern given by the formula 2×4n

Pranza plotted point a in the coordinate plane below.

Christine wong has asked dave and mike to her move into a new apartment on sunday morning. she has asked them both, in case one of them does not show up. from past experience, christine knows that there is a 40% chance that dave will not show up and a 30% chance that mik a. what is the probability that both dave and mike will show up? (round your answer to 2 decimal places.) b. what is the probability that at least one of them will show up? c. what is the probability that neither dave nor mike will show up? (round your answer to 2 decimal places.)e will not show up. dave and mike do not know each other and their decisions can be assumed to be independent.