The average number of miles (in thousands) that a car's tire will function before needing replacement is 71 and the standard deviation is 19. Suppose that 18 randomly selected tires are tested. Round all answers to 4 decimal places if necessary. a. What is the distribution of ? ~ N( b. What is the distribution of ? ~N c. If a randomly selected individual tire is tested, find the probability that the number of miles (in thousands) before it will need replacement is between 68.7 and 73.8.

Q: Assume that adults have IQ scores that are normally distributed with a mean of μ = 100 and standard…

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Q: Assume that adults have IQ scores that are normally distributed with a mean of µ= 100 and a standard…

A: Given information Population mean µ = 100 Standard deviation σ = 20 We have to find the probability…

Q: Assume that adults have IQ scores that are normally distributed with a mean of μ = 105 and a…

A: Given information-We have given that adults have IQ scores that are normally distributed.μ= 105σ =…

Q: Assume that adults have IQ scores that are normally distributed with a mean of u = 105 and a…

A: Obtain the Z-score for the random variable X equals 129. The Z-score for the random variable X…

Q: Assume that adults have IQ scores that are normally distributed with a mean of u= 105 and a standard…

A: Solution

Q: Assume that adults have IQ scores that are normally distributed with a mean of u= 100 and a standard…

A: Obtain the standard z-score for the random variable equals 140 The standard z-score for the random…

Q: Assume that adults have IQ scores that are normally distributed with a mean of u = 105 and a…

A: Let "X" be the IQ score of adults.

Q: Assume that adults have IQ scores that are normally distributed with a mean of u = 100 and a…

A: Given X is normal Distributed with mean µ = 100.0 and standard deviation σ = 15.0 now will using…

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Q: Assume that adults have IQ scores that are normally distributed with a mean of u= 100 and a standard…

A: The standard normal variable Z is defined as, Z = (X – µ)/σ, where µ is the mean of the random…

Q: The average high temperature in Anchorage, AK in June is 63°F with a standard deviation of 1.6°F.…

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Q: Assume that adults have IQ scores that are normally distributed with a mean of u = 100 and a…

A: Given information Population mean µ = 100 Standard deviation σ = 20 We have to find the probability…

Q: Solve. In a box of 13 batteries, 8 are dead. You choose two batteries at random from the box. Let…

A:

Q: Assume that adults have IQ scores that are normally distributed with a mean of μ = 100 and a…

A: From the provided information, Mean (µ) = 100 Standard deviation (σ) = 15

Q: The mean time taken by all participants to run a road race was found to be 155 minutes with a…

A: Chebyshev's rule :  According to Chebyshev's rule, the probability that XX is within kk standard…

Q: Assume that adults have IQ scores that are normally distributed with a mean of u = 105 and a…

A: Let X denote the IQ scores of adults. Given that X follows N(mean = 105, SD = 20), then Z = (X -…

Q: Assume that adults have IQ scores that are normally distributed with a mean of u = 100 and a…

A: Let X is defined as the adult have IQ scores that are normally distributed with mean of 100 and…

Q: that a randomly selected adult has an IQ between 91 and 119. Click to view page 1 of the table,…

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Q: Assume that adults have IQ scores that are normally distributed with a mean of u= 100 and a standard…

A: Given that, Mean = 100 Standard deviation = 15

Q: Assume that adults have IQ scores that are normally distributed with a mean of u = 105 and a…

A: Given information Mean µ = 105 Standard Deviation σ = 15

Q: Assume that adults have IQ scores that are normally distributed with a mean of u = 100 and a…

A: Let X be the random variable from normal distribution with mean (μ) = 100 and standard deviation (σ)…

Q: Assume that adults have IQ scores that are normally distributed with a mean of μ = 105 and a…

A: Mean()=105standard deviation()=15

Q: Assume that adults have IQ scores that are normally distributed with a mean of μ = 105 and a…

A: Suppose the random variable x defines IQ scores of an adult.

Q: Assume that adults have IQ scores that are normally distributed with a mean of μ= 105 and a standard…

A: GIVEN DATA normal distributionμ = 105σ = 15P(x<123) = ?

Q: Assume that adults have IQ scores that are normally distributed with a mean of u 105 and a standard…

A: Given that, Mean = 105 and Standard deviation = 15

Q: Assume that adults have IQ scores that are normally distributed witha mean of u =100 and a standard…

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Q: In a study 10 people were given a test. The mean test score was 78.9 points. The standard deviation…

A: Given: Sample size n = 10 Sample mean X = 78.9 Sample standard deviation s = 5.2 Formula Used: X =…