Given the following frequency distribution, compute for the following: Class Intervals Frequency (f) (d) (fd) (F) 58- 59 10 60- 61 14 62- 63 26 64- 65 35 66- 67 23 68- 69 19 70- 71 15 72- 73 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.
1. Given the following frequency distribution, compute for the following:
| Class Intervals | Frequency (f) | (d) | (fd) | (F) |
| 58- 59 | 10 | |||
| 60- 61 | 14 | |||
| 62- 63 | 26 | |||
| 64- 65 | 35 | |||
| 66- 67 | 23 | |||
| 68- 69 | 19 | |||
| 70- 71 | 15 | |||
| 72- 73 | 6 |
Required:
a.
b. Quartile 3
c. Decile 7
d. Decile 8
e. Percentile 88
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