Given the following scores of students in Statistics. 67 88 95 76 56 40 99 43 50 61 93 48 59 87 61 77 100 65 54 75 78 80 86 83 79 92 89 90 70 80 73 84 80 60 96 89 76 69 81 90 54 60 65 88 85 77 82 80 79 49 a. Construct a frequency distribution using interval 5. b. Add the cumulative frequency columns.
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.
Step by step
Solved in 2 steps
