Question

Everyone working at a local diner makes $8/hour. What is the expected salary per hour? What...

  1. Everyone working at a local diner makes $8/hour.
  1. What is the expected salary per hour?
  2. What is the expected salary for a 9-hour shift?

  1. Suppose X has the following probability distribution.

x

-1

0

1

P(X = x)

.50

.35

.15

  1. Verify that this is a valid probability distribution.
  2. Find the mean of X.
  3. Find the variance of X.
  4. Based on your answer from part (i), what is the mean of 7X + 6
  5. Suppose another random variable Y has a mean of -2. What is the mean of 2X + Y?
0 0
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Answer #1

hour Rate Exjpeeted salany ( Aour TAHE &Kg 72 P)PC)tPl) +P (x from tha given ishriuhbn 0.10 0.35 0 15 Pli)0 T = PMF valid 17

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