When using 1-Var Stats on a scientific or graphing calculator, the resulting statistical output includes two values for the standard deviation of the data set.  These values are labeled as Sxand σx in the statistical output.  Why is it necessary to give two values for the standard deviation?  How would you choose which one to use as the standard deviation of a data set you are working with?  Be sure to explain the difference between these two values as you answer these questions

Q: Solve for the range, variance, and standard deviation of this data: 40, 34, 50, 46, 47, 39. +Input…

A: We will find out all the required values.

Q: For a data set of the pulse rates for a sample of adult females, the lowest pulse rate is 35 beats…

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Q: Jim  figures that it takes an average of 17 minutes with a standard deviation of 3 minutes to drive…

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Q: Given a set of data sorted from smallest to largest, define the first, second, and third quartiles.…

A: By definition we know first quartile is the point below which 25% of the observation lies, second…

Q: The amount of income taxes that people owe each year varies greatly from person to person because…

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Q: Standard Deviation: A measure of the dispersion of a set of data from its mean. These are the steps…

A: Given temperature :  N=8 { 32,36,29,34,31,33,27,34 }  First we will calculate mean than we will…

Q: Decide if the following statement is true or false. Explain why. It is possible to have a standard…

A: We need to decide if the given statement that " It is possible to have a standard deviation of -2…

Q: SAT scores have a mean of 1026 and a standard deviation of 209. ACT scores have a mean of 20.8 and a…

A: The SAT scores, mean, and standard deviation are:The ACT scores, mean, and standard deviation are:

Q: Three potential employees took an aptitude test. Each person took a different version of the test.…

A: given data  norma x1 = 84.5   μ1 = 67.5    σ1 = 10rebecca x2 = 306.5   μ2 = 293    σ2 = 27morgan x3…

Q: Every observation in a data set is multiplied by a constant k. What best describes the effect on…

A: Given : Every observation in a data set is multiplied by a constant k. Let assume observations are :…

Q: Consider the following frequency distribution, known as standard normal. As a wildlife scientist you…

A: Given that, The random variable X is the pollutant concentration of oysters in Oyster Bay. It is…

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

A: Given: Population mean (µ) = 100 Population standard deviation (σ) = 15

Q: The life expectancy of a laser-printer toner cartridge varies Calculate the value of the…

A: From the Excel function, 1st quartile 0.0825 =QUARTILE(D2:D31,1) 3rd quartile 0.23…

Q: 3) Suppose we double each score. What is the range, mean, variance, and standard deviation?

A: It is required to calculate the range, mean, variance, and standard deviation, when each score is…

Q: A set of sociology exam scores are reported as X values and z-scores. On this exam a score of X = 75…

A: Given information: The X values with their corresponding z-score is summarized in the following…

Q: You will be comparing two sets of data for this assignment.  1. Determine the average number of…

A: Given: For Biochemistry students: n = 24 For Genetics students: n = 7 Formula Used: Mean X = ∑Xin…

Q: percentile rank on each exam? Percentile rank of ACT  Percentile rank of SAT  On which exam did…

A: The mean and standard deviation for the ACT are 18 and 7. Carla scored 31 on her ACT. The value of…