Question 7 3 pts The following frequency distribution represents the number of texts sent in an hour by a class. Use the table to answer the following questions. # of TEXTS 0 - 6 15 7 - 13 17 14 - 20 9. 21 27 28 34 1 The class width is The Ef is equal to The relative frequency for the class 7 - 13 is (express as a percent rounded to 2 decimals)
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.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
