Which city is likely to have the least espensive heating and cooling costs? Which city has the most volatility in temperature? If the values in a data set are all multiplied by 3, what happens to the standard deviation?
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.
Bruce is considering recloating to a new city. His options are Moose River, Boundary Valley and Collie Creek. All other living expenses seem to be equal for the three choices, but Bruce is worried about his heating and cooling bill. The only information he has at his disposal is the following table:
City
Moose River 64 25
Boundary Valley 64 5
Collie Creek 64 10
Which city is likely to have the least espensive heating and cooling costs?
Which city has the most volatility in temperature?
If the values in a data set are all multiplied by 3, what happens to the standard deviation?
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