Giving a test to a group of students, the grades and gender are summarized below C Total 3 13 A B Male 11 27 Female 19 9 12 40 Total 30 12 25 67 If one student is chosen at random, calculate the following probabili ty. P(female OR got a B ) =
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.
![Giving a test to a group of students, the grades and gender are summarized below
A
B
Total
Male
11
3
13
27
Female
19
9
12
40
Total 30
12
25
67
If one student is chosen at random, calculate the following probability.
P(female OR got a B ) =
[enter a fraction, i.e. N/D]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F4b24a56a-59b5-4400-9145-a5a229f872e1%2Fd153d6b2-4e7e-4ab5-8793-b186bd7e1673%2Fayvle32_processed.png&w=3840&q=75)
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