x P(X = x) 3 .04 6 .62 9 ? 12 .21 Look at the relative frequency table above. What is P(X = 9) assuming the table represents all possible outcomes? 0.87 0.13 0.23 0.35
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.
| x | P(X = x) |
|---|---|
| 3 | .04 |
| 6 | .62 |
| 9 | ? |
| 12 | .21 |
Look at the relative frequency table above. What is P(X = 9) assuming the table represents all possible outcomes?
0.87
0.13
0.23
0.35
GIVEN,
| x | P(X = x) |
|---|---|
| 3 | .04 |
| 6 | .62 |
| 9 | ? |
| 12 | .21 |
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