Only two questions to be solved asap
Youâ€™re going to catch a fish in the river. You know that its size is normally distributed with mean 56 inches and standard deviation 7 inches. What is the probability that you catch a fish over 60 inches? What is the probability that you catch a fish less than 50 inches?
Construct a 95% confidence interval if the sample size is 30, mean is 60 and the standard deviation is 8.