Calculate the correlation coefficient for the following data and interpret your result. 3pt Year Road accident (Y) Consumption of beer (X) 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 155 150 180 135 156 168 178 160 132 145 70 63 72 60 66 70 74 65
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.
- Calculate the
correlation coefficient for the following data and interpret your result. 3pt
|
Year
|
Road accident (Y) |
Consumption of beer (X) |
|
1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 |
155 150 180 135 156 168 178 160 132 145 |
70 63 72 60 66 70 74 65 62 67 |
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