Question 7: Cumulative distribution- Discrete variable A branch of a certain bank in New York City has six ATMS. Let X represent the number of machines in use at a particular time of day. of The accompanying table gives the probability distribution table and the probability mas function (pmf) of X as follow: X 1 3 4 5 P(x) 0.15 0.20 0.25 0.20 0.16 0.04 Calculate the following Cumulative distribution function (CDF): F (6) = ? Select one: a. Non of the answers b. 1.2 с. 1 d. 0.6
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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