An IQ test is normally distributed with mean 100 and standard deviation 15. Just by knowing the mean and standard deviation, we can answer the following questions:

Q: Suppose the exam average in a class is 82% with a standard deviation of 6. What proportion of…

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Q: how do you find the standard deviation of 7.1 , 11.6, 8.1, and 13.4 ?

A: The standard deviation of a  data distribution tell us how deviated are the data points with respect…

Q: A large number of applicants for admission to graduate study in business are given an aptitude test.…

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Q: IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. What…

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Q: Psychological and educational tests, including MMPI are often designed so they have a mean of 50 and…

A: Given that  They have a mean of 50 and a standard deviation of 10.

Q: Which of the below data sets has the lowest standard deviation? You do not need to calculate the…

A: The correct option is    0, 1, 3, 3, 3, 5, 6

Q: 11. MENSA, the high IQ society, only accepts membership into their organization if an applicant's IQ…

A: Given Data Population Mean,μ = 100.0 Population Standard Deviation,σ = 15.0

Q: The scores on a standardized normally distributed with a mean of 95 and standard deviation of 10.…

A: Standardized z-score:   The standardized z-score represents the number of standard deviations the…

Q: Would you be able to help with Standard Deviation along with the range, mean, mode, and median?

A: Measures of variability:The measure of variability or the measures of dispersion can be measured…

Q: If you chose to compute a mean for a variable, which measure of variability would you most likely…

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Q: A large number of applicants for admission to graduate study in business are given an aptitude test.…

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Q: Suppose that Harry and Ron take an exam for which the mean score is 60 and the score of standard…

A: Given information- Population Mean µ = 60 Standard deviation (σ) = 10 Harry's score = 80

Q: Assume a new measure of Intelligence Quotient (or IQ) has been developed. The mean IQ for the…

A: The standard deviation is defined how much deviation from the mean is called standard deviation.

Q: In this chapter we learned thata z-score (also called a standard score) gives you an idea of how far…

A: Z=x¯-μσ/n=Z score ~N(0,1)

Q: A student will spend 15 hours average each week in class. If the standard deviation is 2 hours, what…

A: Given that mean=15 and standard deviation = 2 Let, X= number of hours spent by a student in the…

Q: The MF exam has a population mean of 500 and a standard deviation of 200. What are the scores for…

A: Let X=MF exam scores We have given information, The population mean μ=500 And population standard…

Q: A study reported on essential organic molecules and a Normal model can be used to describe these…

A: As per our guidelines we are suppose to answer three sub parts. Given,mean(μ)=194standard…

Q: from the

A: The standard deviation and average deviation,  are two of the most frequently used measures for…

Q: The scores on a standardized test are normally distributed with a mean of 100 and standard deviation…

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Q: standardized test has a pop. mean of 152 and a standard deviation of 16. What would be the median…

A: Given that Mean=M=152, Standard Deviation=Sd=16 X~N(M=152,Sd=16)

Q: Please help me understand the problem. Is the given standard deviations 6, and 7? I know I need to…

A: Based on the provided information, the known values are: Population mean, μ=7Population standard…

Q: Each of the variables displayed in the histograms below has a mean of 14.5, a range of 8, and 59…

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Q: You scored a 85 on a stats test with a mean of 70 and a standard deviation of 7. You also score a 90…

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Q: The average age of Amtrak passenger train cars is about 20 years.  If the distribution of ages is…

A: Z= x-μσ~N(0,1)

Q: I need help with understanding standard deviation.  How to calculate it from the mean?

A: The standard deviation describes the spread of the data distribution from the mean of the given data…