Safety Insurance Company has compiled the following statistics. ...

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Safety Insurance Company has compiled the following statistics. For any one year period: P(accident  male driver under 25) = .22 P(accident  male driver over 25) = .15 P(accident  female driver under 25 = .16 P(accident  female driver over 25) = .14 The percentage of Safety's policyholders in each category are: Male Under 25 20 Male Over 25 40 Female Under 25 10 Female Over 25 30
 a. What is the probability that a randomly selected policyholder will have an accident within the next year?
  b. Given that a driver has an accident, what is the probability that the driver is a male over 25?
  c. Given that a driver has no accident, what is the probability the driver is a female?
  d. Does knowing the fact that a driver has had no accidents give us a great deal of information regarding the driver's sex?

Question 2

If only MSE is known, you can compute the
 a. r square
  b. coefficient of determination
  c. standard error
  d. all of these alternatives are correct

[recede]

Answer to Question 1

a. .162
b. .37
c. .408
d. no

Answer to Question 2

C