A researcher was trying to establish a relationship between height and weight of individuals. For this purpose he decided to take a random sample of 10 persons and noted their height in cms and weight in Kgs . The data is given below.: Height in cms - 150,147,132,160,153,155,162,146,137 ,140 ; Weights (kgs) respectively are 60,47,52,65,67,55,70,63,57,64. The relationship is as follows: height = 104.93 + 0.721; weight and weight = 2.33 + 0.389 height. Calculate variation in height based on weight is variation in weight based on height is
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.
A researcher was trying to establish a relationship between height and weight of individuals. For this purpose he decided to take a random sample of 10 persons and noted their height in cms and weight in Kgs . The data is given below.:
Height in cms - 150,147,132,160,153,155,162,146,137 ,140 ;
Weights (kgs) respectively are 60,47,52,65,67,55,70,63,57,64.
The relationship is as follows:
height = 104.93 + 0.721; weight and weight = 2.33 + 0.389 height.
Calculate variation in height based on weight is
variation in weight based on height is
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