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Vinvika [58]
3 years ago
6

A sales analyst listed the probabilities of profits and losses in dollars for a certain company. Find the mean for the probabili

ty distribution.

Mathematics
2 answers:
Lilit [14]3 years ago
5 0

Answer:

The answer is 69.25

Step-by-step explanation:

kakasveta [241]3 years ago
4 0

Answer: The mean for the probability distribution will be 69.25.

Explanation:

Since we given that

At\ x_1= -500 ,P(x) = 0.076\\

At\ x_2= -250,P(x)= 0.191\\

At\ x_3=0, P(x)= 0.265\\

At\ x_4=250 , P(x)= 0.316\\

At\ x_5=500 , P(x)= 0.152\\

As we know the formula for expectation of x i.e. known as mean for the probability distribution,

E(x)=x\sum_{1}^{5} P(x)

So, we  apply this formula in our case,

-500\times 0.076+(-250)\times 0.191+0\times 0.265+250\times 0.316+500\times 0.512=69.25

\mu = 69.25

Hence, the mean for the probability distribution will be 69.25.



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