ilustration 17.8. For a binomial distribution the mean is 6 and standard deviation is 2. Write out all the terms of the distri- bution.

Q: Determine whether the following graph can represent a variable with a normal distribution. Explain…

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Q: A normal distribution has a mean of 120 and a standard deviation of 10. Calculate the 90th…

A: From the provided information, Mean (µ) = 120 Standard deviation (σ) = 10 X~N (120, 10)

Q: 1. What is the data value associated with az-score of 0.4? 2. What is the data value associated with…

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Q: Use the formula to find the standard error of the distribution of differences in sample means, .…

A: Introduction: Define X1, X2 as denoting a randomly selected observation from Population 1 and…

Q: Variance and Standard Deviation n=12 34, 28, 45, 48, 24, 41, З8, 46, 43, 29, 31, 30

A: Given data, 34,28,45,48,24,41,38,46,43,29,31,30   Mean is μ=∑xnμ=43712μ=36.4166

Q: 1.29% of fly balls are hit further than what distance? • What distribution will you use to calculate…

A: 1)We have given that theMeanµ = 269Standard deviationsσ = 71Let X be a random variable denoting…

Q: Roland received a score of 80 on a test for which the mean score was 74.3. Roland has learned that…

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Q: Samples of size n=4000 are randomly selected from a population of homeowners in Florida. The square…

A: Samples of size n=4000

Q: (c) Do the occupancy data for the 120 flights suggest that this scheduled flight is unprofitable?…

A: Given informaton:

Q: Determine whether the following graph can represent a variable with a normal distribution. Explain…

A: Solution-:We determine whether the following graph can represent a variable with a normal…

Q: Use the range rule of thumb to estimate the standard deviation. Round results to the first decimal.…

A: As a rule of thumb we estimate standard deviation of a population by one-forth of the range of the…

Q: At a supermarket, the mean waiting time to get to the checkout counter is 5 minutes and the standard…

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Q: Determine whether the following graph can represent a variable with a normal distribution. Explain…

A: From the above graph we can see that, it is symmetric the mean =median= mode= 20 i.e. mid point of…

Q: Adding 10 points to every score in a distribution will not change the value of the standard…

A: To add 10 numbers to every score in a distribution will not change the value of the standard…

Q: Compute the mean and standard deviation for the sample below, rounding each to the nearest…

A: Measure of central tendency measures the central or average value of a dataset. Measured of…

Q: How to find what numbers 89% lie between with a mean of 24 and a standard deviation of 4

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Q: A sample was done, collecting the data below. Calculate the standard deviation, to one decimal…

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Q: Reponse time for seven emergency phone calls in a large metropolitan area were measured to the…

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Q: The cost of unleaded gasoline in the Bay Area once followed an unknown distribution with a mean of…

A: The question is about sampling distributionGiven :Mean cost of unleaded gasoline (  ) =…

Q: standard deviation is s = 30. Determine the test statistic for this test.

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Q: 11. Sixteen men and sixteen women purchased magazine subscriptions. The distribution of prices had…

A: Given that  Sixteen men and sixteen women purchased magazine subscriptions. The distribution of…

Q: standard deviation for 15, 22, 18, 7 13, 12

A: Solution: Let X be the random variable. The given data is 15, 22, 18, 7, 13 and 12.

Q: survey of 18 year old males, the mean weight was 160.5 pounds with a standard deviation of 46.4…

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

Q: Using these reading scores  7, 7, 14, 9, 10, 8, 11, 14, 13, 14, 15, 15 and knowing the mean of the…

A: The data are 7, 7, 14, 9, 10, 8, 11, 14, 13, 14, 15, 15

Q: 9. Determine whether it is usual or unusual Determine whether the score 33 is usual or unusual when…

A: We find the z score of 33