Question: If E[X] = 1 and V ar (X) = 5 find: a) E[3+0.5X]? b) V ar (7-3X) c) E[(4+X)^2]

If E[X] = 1 and Var(X) = 5 find:

a) E[3+0.5X]?

b) Var (7-3X)

c) E[(4+X)^2]

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:

Help needed please. File Home Home Insert Draw Page Layout Formulas Data Review View Help B Share Comments Insert Calibri - 11 A General # W 47 3 3X Delete Paste Ideas BI U v $ - %. O " Sensitivity...

Q:

Student: Sterling White Instructor: David Scott Date: 10/11/22 Course: Math 1324 PreCalculus for Business Assignment: Section 5.3 Homework 8. A manufacturing company makes two types of water skis. a...

Q:

I need help with this question, here is the question and the data chart: Q 3 spreadsheets_linear_regression (1) AutoSave OFF View Tell me Update Apple ID Settings Home Insert Draw Page Layout...

Q:

AutoSave OFF na na... ActualFinalSp22 Q a go Home Insert Draw Page Layout Formulas Data Review View Acrobat Tell me Share 0 Comments Arial 12 v ~ General Insert v LG FO 28- O O Conditional Formatting...

Q:

Please answer all the required questions in detail I hope the answer is not copy-paste I hope that the answer will be according to the concepts in the chapter 3 The following article summarizes the...

Q:

Multiple Choice: [10 Marks] 1. Derivative of f (x) = cos2x a) 2cosx b) sin x c) cosx(sinx) d) -2sinx(cosx) 2. Derivative of f (x) = 7e-4x a) 7e-4x b) - 4e- 4x c) -28e-28x d) -28e-4x 3. Find the slope...

Q:

Answer these problems , please .. .Thank you ! Section 2.6: Problem 1 (1 point) Previous Problem Problem List Next Problem If 3x- + 3x + xy = 1 and y(1) = -5, find y'(1) by implicit differentiation....

Q:

Multiple Choice: [10 Marks] 1. Derivative of f (x) = cos2x a) 2cosx b) sin x c) cosx(sinx) d) -2sinx(cosx) 2. Derivative of f (x) = 7e-4x a) 7e-4x b) - 4e- 4x c) -28e-28x d) -28e-4x 3. Find the slope...

Q:

Please only help with questions 1, 3,7,11, 13, 17, 21. Thank you! 3.10 EXERCISES 15-18 (a) Find the differential dy and (b) evaluate dy for the 1-4 Find the linearization L(x) of the function at a....

Q:

| Rockland Commun X W SPEECH FINAL.doc X Bb Take Test: MAT 201 x O MAT 20100-8( x Bb MAT 20100H Exam x 1; rain falling from a( x Bow Related Rates, A Cc x | Untitled * *Course Hero X DE MAT 20100H...

Q:

Question 3 (Select any that apply) A drug's functional groups can affect which of the following? (select any that apply) OA. How often you have to take it O B. How it is formulated How its...

Q:

Please compose a brief summary of a recent accounting or business fraud related article you discovered. The article must be dated January 2017 to present. documents and miscounts

Q:

3. (LO2) Testaburger Ltd. uses no external financing and maintains a positive retention ratio. When sales grow by 15 percent, the firm has a negative projected EFN. What does this tell you about the...

Q:

The balance sheet for Stud Clothiers is shown next. Sales for the year were $3,420,000, with 75 percent of sales sold on credit. STUD CLOTHIERS Balance Sheet 20X1 Assets Liabilities and Equity Cash $...