Q#3 Coffee With Meals: A researcher wishes to determine the number of cups of coffee a customer drinks with an evening meal at a restaurant. Find the mean, variance, and standard deviation for the distribution. X 0 1 2 3 4 P(X) 0.31 0.42 0.21 0.04 0.02
Q#3 Coffee With Meals: A researcher wishes to determine the number of cups of coffee a customer drinks with an evening meal at a restaurant. Find the mean, variance, and standard deviation for the distribution.
X
0
1
2
3
4
P(X)
0.31
0.42
0.21
0.04
0.02
Q#4: Industry standards suggest that 10% of new vehicles require warranty service within the first year. Jones Nissan in Sumter, South Carolina, sold 12 Nissans yesterday.
What is the
What is the probability exactly one of these vehicles require warranty service?
Determine the probability that exactly two of these vehicles require warranty service?
Compute the mean and standard deviation of the probability distribution.
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