Mathematics, 21.11.2019 02:31, kyra737
According to benford’s law the probability that the first digit of the amount of a randomly chosen invoice is a 1 or a 2 is 0.477. you examine 90 invoices from a vendor and find that 29 have first digits 1 or 2. if benford’s law holds, the count of 1s and 2s will have the binomial distribution with n = 90 and p = 0.477. too few 1s and 2s suggests fraud. what is the approximate probability of 29 or fewer if the invoices follow benford’s law? do you suspect that the invoice amounts are not genuine?
(a) 0.9855
(b) 0.0145
(c) 0.9984
(d) 0.0016
Answers: 2
Mathematics, 21.06.2019 13:00, krishawnnn
Shiny white dental insurance costs $258 per year. approximately one-third of insured people need a filling, which averages $110 each. 80% of insured people get a preventive check-up each year, and the average cost of this visit is $95. if you consider shiny white’s income and expenses, what is the expected value of each insured customer?
Answers: 1
Mathematics, 21.06.2019 16:40, kristenhernandez74
Which region represents the solution to the given system of inequalities? |-0.5x+y23 | 1.5x+ys-1 5 4 -3 -2 -1 1 2 3 4
Answers: 1
According to benford’s law the probability that the first digit of the amount of a randomly chosen i...
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