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 18:20
The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?
Answers: 1
Mathematics, 21.06.2019 19:10
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Mathematics, 21.06.2019 21:00
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Mathematics, 21.06.2019 23:00
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According to benford’s law the probability that the first digit of the amount of a randomly chosen i...
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