Question: Let X be a random variable with the following probability distribution. value x of x p(x=x) -30 0.05 -20 0.10 -10 0.40 0 0.10 10

LetX be a random variable with the following probability distribution.

value x of x p(x=x)

-30 0.05

-20 0.10

-10 0.40

0 0.10

10 0.30

20 0.05

Find the expectationE(X)ofX

e(x)=

Find the variance Var(X) ofX

.var(x)=

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Mathematics Questions!

Q:

Q1. Let X be a random variable with the following probability distribution. Value x of X P( X=x) -30 0.05 -20 0.20 -10 0.15 0 0.20 10 0.25 20 0.15 Complete the following. (If necessary, consult a...

Q:

Let X be a random variable with the following probability distribution : Value x of X P (X=x) -30 0.05 -20 0.55 -10 0.25 0 0.10 100.05 Find the expectation E(X) and variance Var (X) of X. E (x)...

Q:

Let X be a random variable with the following probability distribution. Value x of X P ( X=x) -30 0.10 -20 0.50 -10 0.05 0 0.05 10 0.30 Complete the following. (If necessary, consult a list of...

Q:

Let X be a random variable with the following probability distribution. Value x of X P (X=x) 0 0.05 10 0.10 20 0.40 30 0.20 40 0.15 50 0.10 Complete the following. (If necessary, consult a list of...

Q:

Question 2 of 12 (5 points) | Question Attempt: 1 of 1 Let X be a random variable with the following probability distribution. Value x of X P (X=x) 10 0.10 20 0.35 30 0.40 40 0.10 50 0.05 Complete...

Q:

Please help me with this Week 4 Discussion - MAT2058 St x & MAT 2058 Discussion Questions X A ALEKS - Kendra Williams - Week x Course Hero X G Google...

Q:

Please answer a and b below. Let X be a random variable with the following probability distribution. Value x of X P ( X=x) 30 0.25 40 0.30 50 0.05 60 0.05 70 0.05 80 0.30 Complete the following. (If...

Q:

Having problems with this, Can anyone assist? Let X be a random variable with the following probability distribution: Value x of X P (X=x) -10 0.15 0 0.10 10 0.20 20 0.15 30 0.05 40 0.35 Find the...

Q:

Please answer a and b Let X be a random variable with the following probability distribution Value x of X P ( X=x) 40 0.25 50 0.30 60 0.40 70 0.05 Complete the following. (If necessary, consult a...

Q:

w-awu.aleks.com/alekscgi/x/Isl.exe/10_u-IgNslkr7j8P3jH-lvTtV_fZtSyVRXFI9F_OAHM6Rx2f6TnS_nmDK71YCBGk4c57VgDHueXbUhbvYbl Week 2 Homework Question 11 of 20 (1 point) | Question Attempt: 1 of Unlimited...

Q:

On January 1, 2011, Bell Company acquires an 80% interest in Carter Company for $140,000. The purchase price results in a $30,000 (including NCI adjustment) increase in the patent which has a 10-year...

Q:

In the study of Exercise 15.70, information on the cellular phone system was also shown to MBA students. Part of the analysis of variance table for their quality assessments is shown here. Complete...

Q:

Seasonal merchandise consists of items whose sales fluctuate dramatically depending on the time of the year. Group of answer choices True False

Q:

1. Increasing staff levels at peak times: Budget Increase or decrease 2. Simplifying the menu-assume this means fewer food choices at lower cost Budget Increase or decrease 3. Larger groups for...