Of all customers purchasing automatic garage-door openers, 70% purchase a chain-driven model. Let X = the number among the next 15 purchasers who select the chain-driven model. (a) What is the pmf of X? b(x; 15, 0.7) nb(x; 15, 0.3) h(x; 11, 15, 70) b(x; 15, 0.3) h(x; 4, 15, 70) nb(x; 15, 0.7) Correct: Your answer is correct. (b) Compute P(X > 10). (Round your answer to three decimal places.) P(X > 10) = .515 Correct: Your answer is correct. (c) Compute P(6 ≤ X ≤ 10). (Round your answer to three decimal places.) P(6 ≤ X ≤ 10) = .481 Correct: Your answer is correct. (d) Compute μ and σ2. μ = 10.5 Correct: Your answer is correct. σ2 = 3.15 Correct: Your answer is correct. (e) If the store currently has in stock 10 chain-driven models and 7 shaft-driven models, what is the probability that the requests of these 15 customers can all be met from existing stock? (Round your answer to three decimal places.)

P(X > 10), n = 15, p = 0.7

P(X > 10) =P(10 < X ≤ 15) = P(11 ≤ X ≤ 15) = P(X = 11, 12, 13, 14, 15)

=P(X = 11) + P(X =12) + P(X = 13) + P(X =14) + P(X = 15) (because these are disjoint events)

Step-by-step explanation:

See attached image for detailed explanation

the k side

step-by-step explanation:

plese mark mde brainliest!

it can be to see completed examples before writing, in order to examine what makes for an effective piece. see how these intros give some context before posing the topic and lead naturally into the body paragraphs, where the evidence will be listed. you can imagine how the author has organized the rest of the piece.

"we buried my cousin last summer. he was 32 when he hanged himself from a closet coat rack in the throes of alcoholism, the fourth of my blood relatives to die prematurely from this deadly disease. if america issued drinking licenses, those four men—including my father, who died at 54 of liver failure—might be alive today. that is a good example piece   some steps that are .

. writing something that happened to you

.read a book you like to get ideas from there

. lastly you can make a venn diagram

hope this plz make brainliest

step-by-step explanation: