Students in a statistics dass were surveyed about the number of hours they worked per week The density histogram shown describes their responses. For a randomly selected student in the class, let X be the number of hours the student works per week. Rather than use the mean or the median to estimate the center of the entire distribution, explain why it would be more meaningful to separate the data into subgroups and estimate the center of each group. Choose the correct answer below. Te et ngW 620 #40 21 14 25 The data should be separated into subgroups because the distribution is skewed. The data should be separated into subgroups because one of the bars has a density of zero. mal. The data should be separated into subgroups because he distribution is Od The data should be separated into subgroups because the distribution is bimodal
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
