Compare the (i) three data sets on Q (ii) the right. 0 0 0 o O 11 121314 151617 11 121314 151617 11 121314 151617 (a) Which data set has the greatest sample standard deviation? O A. Data set (ii), because it has more entries that are close to the mean. O B. Data set (ii), because it has two entries that are far away from the mean. O C. Data set (i), because it has more entries that are farther away from the mean. of
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.
Standard deviation:
Standard deviation measures the dispersion of the data set with its mean
If the values are further from the mean, the standard deviation is higher
If the values are closer to the mean, the standard deviation is lower
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