Given the following data set of different weights in kilogram for mothers attending the ante-natal clinic 89 54 65 45 50 65 90 65 75 88 47 Find the median and range Find the mean, standard deviation and variance using your calculator Determine the 60th Percentile What is the percentile rank of a mother weighing 88kg. 9.
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.
Given the following data set of different weights in kilogram for mothers attending the ante-natal clinic
89
54
65
45
50
65
90
65
75
88
47
Find the median and
Find the mean, standard deviation and variance using your calculator
Determine the 60th Percentile
What is the percentile rank of a mother weighing 88kg.
9.
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