Math help (statistics)

User Generated

Nyl123

Mathematics

Description

must show work for all 9 questions. Will attach assignment, please be familiar with standard deviation, probability...must be done in a hour.

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Explanation & Answer

Attached.

Question 1
P(X= 3) = 7c3 * 0.47^3 * 0.53^4
= 0.2867
Question 2
= (591 + 67 – 31)/1127
= 627/1127
= 0.5563
Question 10
Confidence interval = mean ± z critical * std dev/ √n
Z CRITICAL at 90% interval = 1.645
Confidence interval =

551 ± 1.645 ...


Anonymous
I was having a hard time with this subject, and this was a great help.

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