FREQUENCY DATA Scores on a biology quiz worth 50 points: Score Frequency 20 8 25 12 30 15 35 10 40 11 45 16 50 2 For the FREQUENCY DATA, determine the value of the following statistics (ROUND DECIMAL ANSWERS TO THE NEAREST TENTH): n = range = (SINGLE VALUE - do not provide an interval for this) mean = median = (SINGLE VALUE - do not provide an interval for this) mode = (SINGLE VALUE - do not provide an interval for this)
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.
FREQUENCY DATA
Scores on a biology quiz worth 50 points:
| Score | Frequency |
| 20 | 8 |
| 25 | 12 |
| 30 | 15 |
| 35 | 10 |
| 40 | 11 |
| 45 | 16 |
| 50 | 2 |
For the FREQUENCY DATA, determine the value of the following statistics (ROUND DECIMAL ANSWERS TO THE NEAREST TENTH):
n =
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