a. C. Find the standard deviation. Round your answer to 2 decimal places. b. d. Find the probability that exactly 3 of the observed trucks are speeding. c. e. Find the probability that less than 3 of the observed trucks are speeding.

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1. The probability that a truck will be going over the speed limit on I-77 South between Dobson and Elkin is about 75%. Suppose a random sample of five trucks are observed
on this stretch of I-77.
Transcribed Image Text:1. The probability that a truck will be going over the speed limit on I-77 South between Dobson and Elkin is about 75%. Suppose a random sample of five trucks are observed on this stretch of I-77.
а. С.
Find the standard deviation. Round your answer to 2 decimal places.
b. d.
Find the probability that exactly 3 of the observed trucks are speeding.
с. е.
Find the probability that less than 3 of the observed trucks are speeding.
Transcribed Image Text:а. С. Find the standard deviation. Round your answer to 2 decimal places. b. d. Find the probability that exactly 3 of the observed trucks are speeding. с. е. Find the probability that less than 3 of the observed trucks are speeding.
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