An experiment consists of 400 observations and four mutually exclusive groups. I

Question

An experiment consists of 400 observations and four mutually exclusive groups. If the probability of a randomly selected item being classified into any of the four groups is equal, then the expected number of items that will be classified into group 1 is An experiment consists of 400 observations and four mutually exclusive groups. If the probability of a randomly selected item being classified into any of the four groups is equal, then the expected number of items that will be classified into group 1 is

Explanation / Answer

solution:-

given that 4 groups = 1 / 4 => 0.25

then experiment consists of 400 observations

=> (.25)(400) =100

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