A radio station runs a promotion at an auto show with a money box with 12 $50 tickets, 15 $25 tickets, and 12 $5 tickets. The box contains an additional 20 " dummy" tickets with no value. Find the probability that three $50 prizes are chosen. The probability that three $50 prizes are chosen is..

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A: P(Z>1.5)=?

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A: Given:-              R = red              S = stars             W = white

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Q: indicated probability of time spent each weeknight doing homework. 45. A randomly selected high…

A: It is given that  Mean, μ = 52.5 Standard deviation, σ = 5.1

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A: Given X=29,if diamond appear,otherwise X=-4

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A: given data normal distributionμ = 51.9σ = 65.5n = 10

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A: Answer: From the given data, X is a normally distributed random variable Mean μ = 32 Standard…

Q: 27. Let X denote the proportion of allotted time that a randomly selected student spends working on…

A: We calculate the first moment for the above pdf. E(X)= M= ∫x X*f(x) dx  = ∫01 x(θ+1)*xθ dx  = (θ+1)…

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Q: Let Ar, r ≥ 1, be events such that P(Ar) = 1 for all r. Show that P(1 Ar) = 1.

A:

Q: Assume that a sample is used t sample of size 103 with 70 suc decimals (not percents) accura 99%…

A: given data :CI=0.99α=1-0.99=0.01x= no. of success=70n=103p^=Xn  =70103 =0.6796

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A: Hello. Since your question has multiple, we will solve first question for you. If you want remaining…

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A: given that the discrete probability function

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A: GIVEN DATA, 8- RED  marbles 6- white marbles 14- total marbles A marble is picked up at random.we…

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A: given data,p=0.30n=16q=1-p=1-0.30=0.70x= no. of trucks have blowouts we have to find out  the given…

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A: Given that, X~ U(-1,5)  then pdf of X,  f(X)= 1/(5-(-1)) = 1/(5+1) = 1/6 ; -1<x<5  and Y~…

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Q: 39,40,41

A: Given Information: Mean μ=256 Standard deviation σ=12.5

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A: Given Mean=28.8 Standard deviation=5.2

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A: We know that,  A\ B can be written as (A n Bc)  then (B\C) = (B n Cc)

Q: The lifetime of a certain type of battery is normally distributed with mean value 15 hours and…

A: μ = 15 hoursσ = 1 hoursn = 9 P(∑x>a) = 0.05a = ?

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A: Given Mean=100 Standard deviation=10

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A: given data  normal distribution  μ = 160.5σ = 46.4

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A: Given Level of significance ɑ=0.01