A couple plans to have 4 children. The probability that they will have atleast 3 boys is:- A)3/16 B)1/4 C)5/16 D)7/16

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A: On average 2.5 traffic accidents per month occur at a certain intersection

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A: A pair of dice is rolled 240 times.A total of 7 occurs on the dice.

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Q: E(Z) = ~N o² = (Type an integer or a decimal. Do not round.) (Type an integer or a decimal. Do not…

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Q: During a year ending July 31 of that year, there were approximately 6.2 million sales of existing…

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Q: The probability density function of a mixed random variable X is as follows: Af(x) 0.108(41) 0.20…

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Q: In March 2020, 38% of eligible Californian voters participated in the primary presidential election.…

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Q: Given a standard normal distribution, find the value of k such that (a) P(Z> k) = 0.2578; (b)…

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A: P(X=15), n=18, p=0.8

Q: In how many ways can four elements be selected from A such that their sum is less than 45 without…

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Q: 5. A random variable X= {0, 1, 2, 3, ...} has cumulative distribution function F(x) = P(X ≤ x) = 1 -…

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Q: According to the Food and Drug Administration, 65% of all children in the U.S. dislike vegetables.…

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Q: 1. Customers arrive to the checkout area of New Navy a rate of 80 customers per hour. The inter-…

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Q: Dwight Moody is the manager of a large farm with 1,000 acres of arable land. For greater efficiency,…

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A: Given ,12.40.1We have to find the Probabilities .

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Q: a) Determine the coefficient of x^3*y^4 in the expansion of (2x+y)^12. b) Determine the coefficient…

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Q: What proportion of men have optimal blood pressure? (Round your answer to 2 decimal places).

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Q: Use the information given below to complete the table to the right. n(A') = 24 n(B') = 43 n(A' U B')…

A: From the given information, we have:

Q: 10 cards are numbered from 1 through 10. The cardsare drawn at random. If two cards are drawn…

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Q: You have 12 different video games. How many different ways can you arrange the games side by side on…

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Q: It is known that 15% of the seniors in a large high school will enter military service upon…

A: Given,15% of the seniors in a large high school will enter military service upon graduation. That…

Q: (b) What is the variance of the times between accidents?

A: