eva loves to go fishing. each time she catches a fish, there is a 70\pp, percent chance that it is a northern pike and a 30\00, percent chance it is a walleye. let www be the random variable that represents the number of walleye eva gets if she catches 222 fish. w

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13-12-2022
Mathematics

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eva loves to go fishing. each time she catches a fish, there is a 70\pp, percent chance that it is a northern pike and a 30\00, percent chance it is a walleye. let www be the random variable that represents the number of walleye eva gets if she catches 222 fish. w

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contexto1019 contexto1019 · Answer 1 · 2022-12-19T06:54:09+01:00

The mean of W (µ W) is 0.6 walleye.

This can be calculated using the probability mass function. The probability mass function is calculated by multiplying the probability of the event (in this case, catching a walleye) by the number of events (in this case, catching two fish). Since there is a 30% chance of catching a walleye, the probability mass function is 0.3 x 2, which results in 0.6 walleye. Thus, the mean of W is 0.6 walleye. This means that on average if Eva catches two fish, she would expect to get 0.6 walleye.

The probability mass function is used to describe the probability distribution of a discrete random variable, meaning one that can take on only a countable number of values. It is also used to calculate the expected value of a discrete random variable.

Learn more about probability mass function here:

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Complete Question:

Eva loves to go fishing. Each time she catches a fish, there is a 70% chance that it is a northern pike and a 30% chance it is a walleye. Let W be the random variable that represents the number of walleye Eva gets if she catches 2 fish. Calculate the mean of W. µ W = ____ walleye.