What is the mean of the following data set? 1,99. 2,98. 3,97. 4,96. 5,95.a. 47b. 50c. 75d. 100

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A: mean = 31.5mode = 24median = 24midrange = 38range = 48mean deviation = 12.25variance =…

Q: Find the mean of 10, 20, 30, 40, and 50. a. Add 10 to each value and find the mean. b. Subtract 10…

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Q: find mode of data  45,45,12,1,,4,5,6,7,8,45,56,789,65,45,23,12.97

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Q: Find the mean for the following group of data items. 87, 84, 86, 79, 84, 90

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Q: 10, 1, 13, 9, 5, 9, 2, 10, 3, 8, 6, 17, 2, 10, 15 a) Find the mean b) Find the median

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Q: cw2  The following refer to the following data set: 88.3 123.4 90.9 117.3 123.4 109.2 101 92.7…

A: Solution-

Inverse Normal Distribution

The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.

Mean, Median, Mode

It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.

Z-Scores

A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.