The dot plots show the numbers of miles Ian skated on several days in two different months. July 10 15 Number of Miles Skated Each Day August 5 10 15 Number of Miles Skated Each Day Which statement is supported by the information in the dot plots? A The least number of miles Ian skated on a day in July is greater than the least number of miles Ian skated on a day in August. B The median number of miles Ian skated each day in July is greater than the median number of miles Ian skated each day in August. C The mode of the number of miles Ian skated each day in July is less than the mode of the number of miles Ian skated each day in August. D The range of the number of miles Ian skated each day in July is less than the range of the number of miles Ian skated each day in August.
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.
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