Find the variance of the probability density function to the nearest hundredth.f(x) = 
; [3, 5]
A. 0.33
B. 0.31
C. 0.25
D. 0.27
Answer: B
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Use the preference table to answer the question.Diners at the Monsieur Herni restaurant answer a questionnaire about their favorite course in a French meal. The choices are: Appetizer (A), Entree (E), and Dessert (D). Their votes are summarized in the following table.
Which course is selected as the most favorite using the Borda count method?
A. Dessert B. Tie between Appetizer and Entree C. Entree D. Appetizer
Solve the problem.How many 5-digit numbers can be formed using the digits 0, 1, 2, 3, 4, 5, 6, if repetitions are not allowed?
A. 2160 B. 119 C. 16,807 D. 120
Solve the equation.
= 
A. {4} B. {1} C. {-41} D. {41}
Provide an appropriate response.The number of loaves of whole wheat bread left on the shelf of a local quick stop at closing (denoted by the random variable X) varies from day to day. Past records show that the probability distribution of X is as shown in the following table. Find the probability that there will be at least three loaves left over at the end of any given day. 
A. 0.20 B. 0.65 C. 0.35 D. 0.15