To the right are summary statistics for infant mortality rates for counties of a certain region in Mean 0.05958 2011. The numbers represent infant deaths per 1000 residents. Median 0.04492 Min 0 Q1 0 Q3 0.0877265Max 0.324366Which of the following statements is true? A.Because the distribution is skewed right, more than half the counties had less than 0.04492 infant deaths per 1000 residents. B.About half the counties had more than 0.05958 infant deaths per 1000 residents. C.At least one fourth of the counties had no infant deaths. D.Because the distribution is skewed right, more than half the counties had more than 0.04492 infant deaths per 1000 residents.
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.
To the right are summary statistics for infant mortality rates for counties of a certain region in Mean 0.05958 2011. The numbers represent infant deaths per 1000 residents.
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