A study was conducted that resulted in the following relative frequency histogram. Determine whether or not the histogram indicates that a normal distribution-could be used as a model for the variable. 0.4- 0.2- 1000 2000 3000 4000 5000 Choose the correct answer below. O A. The histogram is bell-shaped, so a normal distribution could be used as a model for the variable. O B. The histogram is not bell-shaped, so a normal distribution could not be used as a model for the variable. OC. The histogram is not bell-shaped, so a normal distribution could be used as a model for the variable. O D. The histogram is bell-shaped, so a normal distribution could not be used as a model for the variable.
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.
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