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Natasha_Volkova [10]
2 years ago
6

Goddesboi this one! what’s the answer? thanks ^^

Mathematics
1 answer:
xz_007 [3.2K]2 years ago
7 0

Answer:

C) 20.97 AED

Step-by-step explanation:

To find the expected value, E(X), or mean μ of a discrete random variable X, simply multiply each value of the random variable by its probability and add the products. The formula is given as \displaystyle E(X)=\mu=\sum xP(x).

Here, x represents values of the random variable X, P(x) represents the corresponding probability, and symbol \displaystyle \sum represents the sum of all products xP(x). Here we use the symbol \mu for the mean because it is a parameter. It represents the mean of a population.

In this case, the expected value of the ticket is \displaystyle E(X)=\mu=\sum xP(x)=12(0.08)+18(0.15)+20(0.31)+22(0.08)+24(0.15)+25(0.23)=20.97

This means that Ahmad can expect to win 20.97 AED for the ticket.

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