Question: Let X be a random variable with the following probability distribution. Value x of X P(X=x) 30 0.10 40 0.30 50 0.05 60 0.10 70

Let X be a random variable with the following probability distribution. Value x of X P(X=x) 30 0.10 40 0.30 50 0.05 60 0.10 70 0.45 Complete the following. (If necessary, consult a list of formulas. ) a) Find the expectation E (X) of X. E(X) = 1 X 5 ? (b) Find the variance Var(X) of X. Var(X) = 1

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!

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...

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...

Let X be a random variable with the following probability distribution: Value x of X P (X=x) 40 0.10 50 0.50 60 0.10 70 0.30 Find the expectation E(X) and variance Var (X) of X. E (x) = Var (X)= .

Question Attempt: 1 of 1 Let X be a random variable with the following probability distribution. Value x of X P( X=x) 30 0.35 40 0.05 50 0.05 60 0.15 70 0.40 Complete the following. (If necessary,...

question 1 Let X be a random variable with the following probability distribution. Value x of X P( X=x) 30 0.40 40 0.05 50 0.15 60 0.15 70 0.25 Complete the following. (If necessary, consult a list...

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...

ingTest.com - Vi... Online Services | De.. 5 www.googleadservi... U E Quiz 3 Question 2 of 5 (6 points) | Question Attempt: 1 of 1 =1 2 3 4 5 Let A be a random variable with the following probability...

Let X be a random variable with the following probability distribution. Value x of X P (X=x) -2 0.40 - 1 0.30 0 0.05 1 0.20 2 0.05 Complete the following. (If necessary, consult a list of formulas.)...

Let X be a random variable with the following probability distribution. Value x of X P( X=x) -2 0.75 -1 0.15 0 0.05 1 0.05 Complete the following. (If necessary, consult a list of formulas.) (a) Find...

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)...

Ninoy died leaving the following properties: Determine if Conjugal, Exclusive or Gross Estate: Conjugal Exclusive Gross Estate 1. Value of his interest professional partnership 1,000,000 2. Car in...

(Using R Code) The safe is difficult to crack. The burglar figures he has 12 tries to crack the safe before he must leave. Each attempt has a 15% chance of succeeding (the results of each attempt are...

A ses Courses LUINITINISSIUNI ICUGIVEU aLLUUTIL. Time left 0:23:54 Hide v. Dwight Campbell returned goods valuing $168 to Daniels Enterprise but had been completely omitted from the books. Required:...

5 . SAD Company is considering 2 alternative cost structures ( and selling prices ) . They are as follows: Alternative # 1 selling price / unit = $ 1 0 0 , variable cost per unit = $ 7 5 , and fixed...

Reporting Accounts Receivable Nomad Corporation reported credit sales of $435,000 in 2001 and collected $350,000 prior to year-end. Bad debt expense equal to 2 percent of credit sales was recorded...

Evaluation of Allowance for Uncollectibles Talvez Company started business on January 3, 2001. The cempany made credit sales of $800,000 during 2001 and received payments of $410,000 prior to the end...

Collection of Accounts Receivable Qeff Company reported the following amounts in its December 31, 2000, trial balance: Qeff Company uses the allowance method for reporting uncollectible accounts and...