A survey conducted on a group of patients showed that these patients either have a heart disease only of a lung disease only or both diseases. It was noted that: • 60 % of the patients are men. • Among the men: 20 % have a heart disease only and 50% have a lung disease only. Among the women: 25% have a heart disease only and 40% have both diseases. One patient is selected at random. Consider the following events: • M: "The selected patient is a men"; • H: "The selected patient has a heart disease only" • L: "The selected patient has a lung disease only"; • B: "The selected patient has both diseases".
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.
Pleaze solve asap if possible my exam is tomorrow and i need to understand this question. And it is not graded this is a sample exam the teacher gave us. Thank you!
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