n this exercise, data from the StudentSurvey dataset is given. Of the 361 students who answered the question about the number of piercings they had in their body, 188 had no piercings, 82 had one or two piercings, and the rest had more than two. Construct a relative frequency table of the data using the categories given. Click here for the dataset associated with this question. Give the relative frequencies rounded to three decimal places. Response Relative Frequency No Piercing One or two piercings More than two piercings Total
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.
Chapter 2, Section 1, Exercise 010
Of the 361 students who answered the question about the number of piercings they had in their body, 188 had no piercings, 82 had one or two piercings, and the rest had more than two.
Construct a relative frequency table of the data using the categories given.
Click here for the dataset associated with this question.
Give the relative frequencies rounded to three decimal places.
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Response
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Relative Frequency
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No Piercing
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One or two piercings
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More than two piercings
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Total
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