In a popular ice cream shop, people order ice cream cones with different numbers of scoops. If X represente the numbers of scoops ordered for randomly selected customers, then the following table gives the probability distribution of X.

x. 1. 2. 3. 4. 5
P(x). 0.21 0.38. 0.27. 0.11. 0.03

What is the expected value of X??

Respuesta :

The expected value be 2.37 for the given data.

What is expected value?

The expected value is calculated by multiplying each of the possible outcomes by the likelihood each outcome will occur and then summing all of those values.

E ( X ) = μ = ∑ x P ( x )

         = 1(0.21)+2(0.38)+3(0.27)+4(0.11)+5(0.03)

         = 2.37

Hence the expected value be 2.37 for the given data.

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