Start from the table below and calculate the sample variance. Enter your answer rounded to integers, without decimals. Frequency 1000 up to 1100 44 1100 up to 1200 52 1200 up to 1300 65 1300 up to 1400 30 1400 uo to 1500 25
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.
Start from the table below and calculate the sample variance. Enter your answer rounded to integers, without decimals.
Frequency
1000 up to 1100 44
1100 up to 1200 52
1200 up to 1300 65
1300 up to 1400 30
1400 uo to 1500 25
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