At least one of the answers above is NOT correct. (1 point) The = 8.2 inches and

Question

At least one of the answers above is NOT correct. (1 point) The = 8.2 inches and 1.2 inches. (a) Is X a discrete or continuous random variable? (Type: DISCRETE or CONTINUOus) ANSWER: CONTINUOUS (b) Find the probability that the length of a chosen fish was greater than 9.7 inches: length, X, of a fish from a particular mountain lake in Idaho is normally distributed with .1056 (c) Find the probability that the length of a chosen fish was between 6.2 and 9.7 inches: 8459 Note: You can earn partial credit on this problem. Preview My Answers Submit Answers Your score was recorded.Your score was successfully sent to the LMS

Explanation / Answer

Solution:

a) Continuous, it is a normal distribution which is continuous variable

b) P(X>9.7) = P(Z > (9.7-8.2)/1.2)
= P(Z > 1.25)
= 1 - P(Z < 1.25)
= 10.8944
= 0.1056
c) P (6.2 < X < 9.7) = P(6.28.2/1.2 < Z < 9.78.2/1.2)
= P (1.67 < Z < 1.25 )
= 0.8469

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