QNT 561 Week 2 Weekly Learning Assessments - Assignment
QNT 561 Week 2 Weekly Learning Assessments - Score more in the weakly learning assignments by getting instant professional help from our learned experts.
QNT 561 Week 2 Weekly Learning Assessments - Score more in the weakly learning assignments by getting instant professional help from our learned experts.
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d-1. Compute the variance of the number that will arrive within 2 days. (Round your<br />
answer to 3 decimal places.)<br />
d-2. Compute the standard deviation of the number that will arrive within 2 days.<br />
(Round your answer to 4 decimal places.)<br />
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Chapter 6 Exercise 20<br />
In a binomial distribution, n = 12 and π = .60.<br />
a. Find the probability for x = 5? (Round your answer to 3 decimal places.)<br />
b. Find the probability for x ≤ 5? (Round your answer to 3 decimal places.)<br />
c. Find the probability for x ≥ 6? (Round your answer to 3 decimal places.)<br />
Chapter 6 Exercise 26<br />
A population consists of 15 items, 10 of which are acceptable.<br />
In a sample of four items, what is the probability that exactly three are acceptable?<br />
Assume the samples are drawn without replacement. (Round your answer to 4 decimal<br />
places.)<br />
Chapter 7 Exercise 4<br />
According to the Insurance Institute of America, a family of four spends between $400<br />
and $3,800 per year on all types of insurance. Suppose the money spent is uniformly<br />
distributed between these amounts.<br />
a. What is the mean amount spent on insurance?<br />
b. What is the standard deviation of the amount spent? (Round your answer to 2<br />
decimal places.)<br />
c. If we select a family at random, what is the probability they spend less than $2,000<br />
per year on insurance per year? (Round your answer to 4 decimal places.)
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