Question

According to the records of a health insurance company 60% of its policyholders submit a claim during a one-year period. Answer the following questions.

question1 )  Find the probability that exactly 18 out of 30 randomly selected policyholders will submit a claim during a one-year period. (Round your answer to 4 places after the decimal point).

a) none

b) 0.5689

c) 0.1474

d) 0.0129

Question 2. Find the probability that at most 12 out of 30 randomly selected policyholders will submit a claim during a one-year period. (Round your answer to 4 places after the decimal point).

	0.0212
	None of the provided answers
	0.0129
	0.5785 Question 3. How many policyholders are expected by this company to submit a claim during a one-year period? a) 12 b) none c) 18 d) 9 Question 4. What is the standard deviation of the number of policyholders which will submit a claim during a one-year period? (Round you answer to 2 places after the decimal point). a) 7.20 policyholer b) 5.34 c) none d) 2.68 policy holder

Answer 1