According to the Central Limit Theorem, what is the standard deviation of the approximate distribution of X 36?

Q: a normal distribution has a mean of 60 with a standard deviation of 8. for this population, which is…

A: Solution

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

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Q: A population of normally distributed data has a mean of 200 and a standard deviation of 20. Assuming…

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Q: If n is multiplied by the factor k in the binomial distribution having the parameters n and p, what…

A: In question, Given that n is multiplied by the factor k in the binomial distribution having the…

Q: If the standard error (σX) of the mean distribution is 10 and the sample size is 25, then what is…

A: Given information Standard error of the mean distribution = 10 Sample size = 25

Q: Assume that a normal distribution of data has a mean of 12 and a standard deviation of 3. Use the…

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Q: The average life of a bread-making machine is 7 years, with a standard deviation of 1 year. Assuming…

A: Mean = 7 Standard deviation = 1 Sample size = 9

Q: The standard deviation of the certain distribution is 9, what is its variance?

A: Hello! As you have posted 2 different questions, we are answering the first question. In case you…

Q: For a binomial distribution with n = 15 and p = 0.2, what is the standard deviation of the…

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

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Q: According to the empirical rule (or the 68-95- 99.7 rule), if a population has a normal distribu-…

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Q: For a binomial distribution with p=- and µ=- the standard deviation is

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Q: If a normal distribution has a mean of 28.0 and a standard deviation of 2.5, what is the value of…

A: It is given that the mean is 28 and the standard deviation is 2.5.

Q: Assume that IQs are normally distributed with a mean of 120 and standard deviation of 20. For a…

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Q: According to the Empirical Rule, the percentage of observations in a data set (providing that the…

A: In statistics, the empirical rule says that for normal distribution, 68%, 95%, and 99.7% of the…

Q: If the standard deviation, o is known the 2-distribution values may not be used to determine…

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Q: Assume that a normal distribution of data has a mean of 18 and a standard deviation of 4 Use the…

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Q: 14. The mean lifetime of a wristwatch is 25 months, with a standard deviation of 5 months. If the…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: As the size of a sample increases, the standard deviation of the distribution of sample means…

A: Here  Standard deviation of sample mean = σn

Q: Obtain the standard deviation of the random variable.

A: First we have to calculate the E(Y2) to find the variance and then standard deviation. It is given…

Q: A normal distribution has a mean of 10 and a standard deviation of 10. What is the number such that…

A: Given the distribution is normalMean = 10standard deviation = 10 The Z score for probability to its…

Q: Given a normal distribution (X) with mean = 100 and standard deviation (σ) = 10,  w hat is the…

A: We have to find given probability..

Q: Given a normal distribution (X) with mean = 100 and standard deviation (σ) = 10,  w hat is the…

A: Let X be a continuous random variable is normally​ distributed with a mean of 100 and a standard…

Q: If X is normally distributed with mean 10 and standard deviation 2, what is the probability that X…

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Q: 7. For a population with a standard deviation of σ = 20, how large a sample is necessary to have a…

A: Standard deviation: Standard deviation is defined as the positive square root of Variance. It is…

Q: Assume the random variable X is normally distributed with a mean of 50 and a standard deviation of…

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Q: Assume that blood pressure readings are normally distributed with a mean of 115 and a standard…

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Q: If the mean and the standard deviation of a continuous random variable that is normally distributed…

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Q: Assume the random variable X is normally distributed with mean μ=50 and standard deviation σ=7.…

A: It is given that, the random variable X is normally distributed with mean μ=50 and standard…

Q: Suppose a nomal distribution has a mean of 50 and a standard deviation of 3. What is Pes 47)?

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Q: If the true mean is .9560 with a standard deviation of .0020 what is the sampling distribution of X

A: if the true mean is 0.9560 with a standard deviation of 0.0020 i.e.  μ=0.9560  and σ = 0.0020

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

A: From the provided information, Mean (µ) = 100 Standard deviation (σ) = 20 Let X be a random variable…

Q: Suppose a normal distribution has a mean of 50 and a standard deviation of 3. What is P(xs 53)?

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Q: If 200 scores a taken at random from a normal distribution with mean 70 and standard deviation 5,…

A: From the given information,  the value of mean is 70, standard deviation is 5 and sample size (n) is…

Q: The average salary for a certain profession is ​$80,000. Assume that the standard deviation of such…

A: We have to find correct answer..

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

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

Q: If SAT scores are normally distributed with a mean of 500 and standard deviation of 100, what…

A: Probability distributions are of two types, discrete and continuous distributions. Normal…

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

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Q: If a distribution is normal with mean 10 and standard deviation 3, then the mode is also 10. True O…

A: Given data Normal distribution with mean = 10 Sd= 3 Then the mode will also 10 We have to identify…

Q: Assume that adults have IQ scores that are normally distributed with a mean of 98 and standard…

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Q: Assume the random variable X is normally distributed with mean 50 and standard deviation of 7.  What…

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Q: In general, the standard error of the sampling distribution is __________the standard deviation from…

A: We know that, Standard error is given by, SE= sigma/√n Where sigma is standard deviation and n is…

Q: The random variable X is normally distributed with a mean of 80 and a standard deviation of 10,…

A: X is normally distributed with mean 80 and standard deviation 10, The P85≤X≤90 is obtained as below…

Q: Assume that blood pressure readings are normally distributed with a mean of 122 and a standard…

A: Assume that blood pressure readings are normally distributed.

Q: The standard deviation for the mmber of pages in a pdf document having a discrete uniform…

A: We need to find the standard deviation for the number of pages in a pdf document having a discrete…

Q: The margin of error is larger if the standard deviation of the population increases (assume all else…

A: Given that, Standard deviation of the population increases.

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

A: Given,   Mean = 105 Standard deviation = 15   The objective is to find the probability that a…

Q: If one normal distribution has a standard deviation of 5, and another has a standard deviation of…

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