proof that for and three events A i B and C defined on the Sample Space s such that P(BIA) <(CIA). P(A) 70+ BC cand

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A: Suppose a random variable x, defines the scores on an exam.

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A: We know,E and F are two events and P(E and F) = 0.2, P(E) = 0.4

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Q: CNNBC recently reported that the mean annual cost of auto insurance is $1019. Assume the standard…

A: Given that  Mean = 1019 Standard deviation = 238 Sample size = 72

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Q: get to a non-zero digit.) X 0 1 2 3 4 5 P(x) X 6 7 8 9 10 P(x) plac any as it

A: Given that  n = 10 , p = 0.8426  X ~ Binomial (n = 10 , p = 0.8426) Note : nCr = n! / {r!*(n - r)!}

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Q: manufacturer knows that their items have a normally distributed lifespan, with a mean of 4 years,…

A: Given that  Mean = M = 4  Standard deviation = SD = 1 X ~ Normal (M = 4 , SD = 1) P(X &lt; a) = 8%

Q: 15) A and B are events such that P(AUB) = 4 1 P(A^B)=; ‚and P(Ã)= ²3. 4 Find P(A|B).

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Q: 72 samples are randomly selected from a normal distribution. The sample mean observed is 148. The…

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Q: For the conjecture "The average age of students in this class is 25", the null hypothesis is:

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Q: distribution has a mean of μ=100 and a standard deviation of σ=8.  What is the probability of…

A: Given The mean and standard deviation of normal distribution is as follows: μ=100σ=8 n=25

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Q: How many customers should the company survey in order to be 95% confident that the estimated…

A: It is given that Level of confidence = 95% Margin of error E = 2 percentage points = 2% = 0.02