According to the United States Census Bureau (2011 data), there are approximately 55,500,000 married couple households in the United State. Every married-couple household is classified into one of three categories:
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.
According to the United States Census Bureau (2011 data), there are approximately 55,500,000 married couple households in the United State. Every married-couple household is classified into one of three categories:
• both native which means that both spouses were born in the U.S.
• both foreign which means that both spouses were born outside of the U.S.
• one native, one foreign which means that one spouse was born in the U.S. and one was born outside of the U.S..
If 79.5% of married couple households are both native and 13.2% are both foreign, then
(a) what percentage of married couple households are one native, one foreign
% married couple households are one native, one foreign
(b) how many married couple households are one native, one foreign?
married couple households are one native, one foreign
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