42 80 70 88 70 84 66 84 82 66 86 52 72 90 70 96 84 96 62 78 60 82 88 54 66 66 88 56 104 84 74 84 60 84 88 58 72 84 68 84 62 72 84 100 72 90 72 110 58
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 group of 50 biomedical students recorded their pulse rates by counting
the number of beats for 30 seconds and multiplying by 2.
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a. Why are all of the measurements even numbers?
b. Draw a stem and leaf plot to describe the data, splitting each stem into two lines.
c. Construct a relative frequency histogram for the data.
d. Write a short paragraph describing the distribution of the student pulse rates.
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