4. The number of students entering in the canteen at any given hour is represented by a random variable X. 40 50 70 80 X P(x) 60 0.1 0.2 0.4 0.1 0.2 Find the probability that at least 50 students enter in the canteen.

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A: No.of people select at random = 2 The probability of one person own dogs is, P(one person own dogs)…

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A:

Q: A box containing 9 blue and 7 white marbles. If two marbles are to be drawn at random with…

A: We have given that a box contain 9 blue and 7 white balls. Total balls are 16. The random variable X…

Q: A class contains 16 boys and 10 girls of which half of the boys and half of the girls are fat. Find…

A: Given,no.of boys=16no.of girls=10no.of fat girls=8no.of fat boys=5Total no.of students=26

Q: Suppose that 30% of people own dogs. If you pick two people at random, what is the probability that…

A: Probability that people own a dog = 30% = 0.30

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A:

Q: The probability that at least 1 freshman is chosen for the committee is ?

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A: Given thatThe proportion of eligible voters in the next election who will vote for the incumbent is…

Q: Suppose that 52% of people own dogs. If you pick two people at random, what is the probability that…

A: Solution  :          Given that 52% of people own dogs By choosing two personat random, we have to…

Q: Suppose that 67% of people own dogs. If you pick two people at random, what is the probability that…

A: From the provided information, 67% of people own dogs that is (p) = 0.67 Sample size (n) = 2 The…

Q: Suppose that 44% of people own dogs. If you pick two people at random, what is the probability that…

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A:

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Q: Suppose that 38% of people own dogs. If you pick two people at random, what is the probability that…

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Q: Suppose that 58% of people own dogs. If you pick two people at random, what is the probability that…

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Q: The newspaper reports that among individuals in the 18 to 22 age, 25% drink coffee. If 400 people of…

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Q: Suppose that 40% of people own dogs. If you pick two people at random, what is the probability that…

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Q: The proportion of eligible voters in the next election who will vote for the incumbent is assumed to…

A: Solution: From the given information, n = 410 and p = 0.527.

Q: suppose that 90% of students take math, 20% of students take chemistry and 15% take both. select a…

A:

Q: suppose that X is a random variable with probability distribution.P(X=k)= 0.02k,where k takes the…

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Q: Suppose that 43% of people own dogs. If you pick two people at random, what is the probability that…

A: probability mass function of B.D is = f ( k ) = ( n  k ) p^k * ( 1- p) ^ n-kwhere       k = number…

Q: Suppose that 55% of people own dogs. If you pick two people at random, what is the probability that…

A: Let p be the probability that a person owns dog. Given that p = 0.55 Let X denote the number of…

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