Question

Q5.  

Consider the following table.

Defects in batch	Probability
0	0.09
1	0.24
2	0.41
3	0.12
4	0.10
5	0.04

Find the variance of this variable.

Homework Help:

3VA. Calculating the mean, variance, and standard deviation of discrete variables (Links to an external site.) (4:35)

3DC. Mean, expected value, variance, and standard deviation of discrete variables (Links to an external site.) (DOCX)

Group of answer choices

2.02

1.48

1.22

1.43

Q6

Consider the following table.

Defects in batch	Probability
2	0.21
3	0.37
4	0.22
5	0.10
6	0.07
7	0.03

Find the standard deviation of this variable.

Homework Help:

3VA. Calculating the mean, variance, and standard deviation of discrete variables (Links to an external site.) (4:35)

3DC. Mean, expected value, variance, and standard deviation of discrete variables (Links to an external site.) (DOCX)

Group of answer choices

3.54

1.64

1.28

1.65

Q15

In a box of 12 tape measures, there is one that does not work. Employees take a tape measure as needed. The tape measures are not returned, once taken. You are the 8^th employee to take a tape measure. Is this a binomial experiment?

Homework Help:

3VC. Using binomials to assess quality of production (Links to an external site.) (3:08)

3DE. Definitions, assumptions and elements (n, x, p) of binomial experiments. (DOCX)

Group of answer choices

Yes, you are finding the probability of exactly 5 not being broken

Yes, the probability of success is one out of 12 with 8 selected

No, binomial does not include systematic selection such as “eighth”

No, the probability of getting the broken tape measure changes as there is no replacement

Answer 1

© Aust Given that X P(x) X. P(x) 2 2 0.21 6.42 0.84 3 0,37 1:11 3.33 4 0:22 0.88 3.52 5 0.10 0.07 6 2,5 2.52 7 0.42 0.21 0.03 1.47 w Mean lo E X. p(x) 3.54 Standard deviation = JE (x2) - B(x)? J14.18- 3.542 - Jl. 6484 1287 (Dear student as for clegg guidelines Export hes only one question when allow to ansuar there Mary so Repost the Renaning Please sepzetang, tronkyou). Questions