Module 7: Calculating Mean and Varianceof a Discrete Random Variable Statistics and Probability Book: Lesson 1.3 The Mean and Standard Deviation of a Discrete Random Variable p. 10-15 A.What's More Independent Activity 1: Study and analyze The number of shoes sold per day at a retail store is shown in the table below. Illustrate the mean, variance, and standard deviation of this distribution. 19 20 21 22 23 P(X) 0+0.2 0.2 0.1 0.1

Q: both answers are only partly right

A: As per company guidelines only one question is allowed to answer for multiple question posted.…

Q: This answer is incorrect. Can you try again?

A:

Q: able

A: Other expert has solved part b. Here We include part a answer.

Q: Hi, I think you misread the question, sorry

A:

Q: whats the answer to (2,1);m=2

A: Here we want to find the equation of the line Passing through the point (2,1) and slope m=2

Q: prow $ PCC-AIB)= pccl B) - p(AIB)

A: The answer is given below

Q: i need solution for d, e, f, g

A: With reference to the given data The regression equation with the independent variable height of…

Q: My homework is saying it's wrong?

A: One factor of the quadratic polynomial 5x2+2x+27 is 5x+9. Let, the other factor be (x+a), then…

Q: Which is the right option?

A: Pascal's identity states that Ckn=Ckn-1+Ck-1n-1 for any positive k and n. here  Ckn  are binary…

Q: this is a different question. it is not my question

A: Given that Sample size=17  Probability of success=0.748  Probability of failure=0.252 We have to…

Q: Could you

A:

Q: Is there a better explaination for part 2 because i dont get how they got there

A:

Q: To steelman is to  represent opposing views as accurately and positively as possible.     true or…

A: The following solution is given below :

Q: Is it true or false?

A:

Q: It is wrong. It says they are both incorrect.

A: X-intercepts are found by substituting y=0 in the given function.

Q: r()"(;) -- 3 =. ... 4 V2/7 O Option 1 Option 2 2/VT

A: Gamma function value

Q: It is not well explained i am confused

A:

Q: 1. Compare the following numbers: 4.69 4.171

A: Dear student as per our rule in one session we can only solve one question please post the other…

Q: It says it is incorrect. Do you have other way?

A: (.)  Maximize z=12x1+10x2 Subject to                    x1+2x2≥20x1+x2≤46x1≥0 , x2≥0 By graphical…

Q: Is det(AB) = det(B A)? Justify your answer.

A: Given- detAB=detBA To justify- The above expression.

Q: Attached is question

A: Solution is given below: