The following shows the results of a survey asking women how many pairs of shoes they own : 2, 4, 4, 5, 7, 8, 8, 9,12,15,17, 28 Find the number of pairs of shoes that is 2 standard deviations above the mean. [ Select ] ["12", "24", "28", "32"] (Round to the nearest whole number). You just met a woman who has 6 pairs of shoes. How many standard deviations below the mean is this woman's show ownership? [ Select ] ["1.67", "1.23", "0.54", "0.89"] (Round to two decimal places).
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.
The following shows the results of a survey asking women how many pairs of shoes they own :
2, 4, 4, 5, 7, 8, 8, 9,12,15,17, 28
Find the number of pairs of shoes that is 2 standard deviations above the mean. [ Select ] ["12", "24", "28", "32"] (Round to the nearest whole number).
You just met a woman who has 6 pairs of shoes. How many standard deviations below the mean is this woman's show ownership? [ Select ] ["1.67", "1.23", "0.54", "0.89"] (Round to two decimal places).
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 3 images
