Find the expected value for the following probability distribution: X 5 10 15 20 P(x) 0.3 0.1 0.4 0.2
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A: From the given information we make following calculation
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A: x y 8 122 10 132 12 145 14 161 16 178 18 190
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A: We have two independent samples. n1=64, s12=6.1, x¯1=7.9 n2=64, s22=10.4, x¯2=8.5 Confidence…
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A: Here we have to solve the part (b) only We have given thatn1 = 149 , x1 = 117n2 = 38 , x2 =…
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A: The significance level, α=0.01 Sample 1 Sample 2 Sample size n1=4 n2=7 Sample mean x1=44…
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A: The given confidence level is 99% and the sample standard deviation s is within 50% of σ.
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A:
Q: An airliner carries 200 passengers and has doors with a height Heights of men are normally…
A: It is given that μ=69, σ=2.8
Q: The average number of Toyota Fortuner cars that you can see on your drive to work is 25, What is the…
A: Answer: From the given data, X~Poisson distribution, λ = 25 X = 29
Q: Calculate the mean and variance for the binomial distribution, n=19, P =0.18
A: Answer: From the given data, Sample size(n) = 19 P = 0.18 and q = 1 - p = 1 - 0.18 = 0.82
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A: Let X be the random variable that which ear cell phone users use to hear. The possible outcomes for…
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A: According to the given information in this question We need to identify the correct option
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A: Mean(μ)=325 standard deviation(σ)=90 sample size(n)=100
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Q: Find the margin of error for the given values of c, s, and n. c = 0.98, s = 2.8
A: c = 0.98, s = 2.8, n = 14
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Q: If A and B are mutually exclusive events with P(A)= 0.28 and P(B) = 0.36 Calculate P(A or B)?
A: Answer: From the given data, A and B are mutually exclusive events P(A) = 0.28 P(B) = 0.36
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A:
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Q: If the population standard deviation of a normal distribution is 2.8, then find the standard…
A: Answer: From the given data, Population standard deviation = 2.8 number of observations = 68
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Q: Calculate the mean for the given data set, 3,6,7,9,2,18,15,12,6,11
A: Answer: From the given data, 3,6,7,9,2,18,15,12,6,11 Sample size(n) = 10
Q: (CI p# 1) You wish to estimate the population mean for salaries at a company by finding a 95%…
A: Sample size, n=30 Sample mean, x¯=40000 Population standard deviation, σ=12000 Confidence level,…
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A: The data is given on the age of adult patients in the hospital. Sample size (n) = 30
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Q: As a rule of thumb, we can apply the Central Limit Theorem for Sample Means for population…
A: Let Xi be the random variable, such that i=1,2,...,n and E(Xi)=μ, V(Xi)= σ2 When n be large then…
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Q: About% of the area is between z=-1and z=1 (or within 1 standard deviation of the mean). (Round to…
A: here given z = 1 and z= -1 area between two z score value represent by probability .
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A: The probability of getting the desired outcome is 0.62.
Q: Use the Standard Normal Table or technology to find the -score that corresponds to the following…
A: According to the given information in this question We need to find the cumulative area correspond…
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X 5 10 15 20
P(x) 0.3 0.1 0.4 0.2
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