Students at a high school were polled to determine the type of music they preferred. There were students who completed the poll. Their responses are represented in the circle graph. What percent of students preferred music? Rap 926 alternative 479 rock and rook 274 country 170 jazz 24 other 87 About % of the students who completed the poll preferred alternative music.
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.
Students at a high school were polled to determine the type of music they preferred. There were students who completed the poll. Their responses are represented in the circle graph.
What percent of students preferred music?
Rap 926
alternative 479
rock and rook 274
country 170
jazz 24
other 87
About % of the students who completed the poll preferred
music.
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