Indicate the best measure of central tendency for each of the following a. IQ scores: 62, 72, 63, 83, 68, 74, 90, 86, 74, 80 b. Error scores: 10, 15, 18, 15, 14, 13, 42, 15, 12, 14, 42 c. Blood types: A-, A-, O, A+, AB-, O, O, O, AB+ d. Grades: B, D, C, A, B, F, C, B, C, D, D
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.
Indicate the best measure of
a. IQ scores: 62, 72, 63, 83, 68, 74, 90, 86, 74, 80
b. Error scores: 10, 15, 18, 15, 14, 13, 42, 15, 12, 14, 42
c. Blood types: A-, A-, O, A+, AB-, O, O, O, AB+
d. Grades: B, D, C, A, B, F, C, B, C, D, D
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