The weight of fish in Lake Paradise follows a normal distribution with mean of 7.5 lbs and standard deviation of 2.5 lbs. a. Wha
t proportion of fish are between 9lbs and 12lbs? Give your answer to 3 decimal places. b. Alex boasts that he once caught a fish that was just big enough to be in the top 3% of of the fish population. How much did his fish weigh? Give your answer to 2 decimal places. c. If one catches a fish from the bottom 20% of the population, the fish must be returned to the lake. What is the weight of the smallest fish that one can keep? Give your answer to 2 decimal places.
A. 1-255255/29012901=0.991202017 is the probability of not making an obscene gesture. b. The probability of none of 5050 making an obscene gesture is (a) raised to the power of 5050: 4.1591E-20 approx. We have not used the 5% rule in this binomial distribution.
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