o study the composition of families in Winslow, Arizona, forty randomly selected married couples were surveyed to determine the number of children in each family. The following results were obtained: 3 1 0 4 1 3 2 2 0 2 0 2 2 1 4 3 1 1 3 4 2 1 3 0 1 0 2 5 1 2 3 0 0 1 2 3 1 2 0 2 Organize the given data by creating a frequency distribution. Find the mean number of children per family. Find the median number of children per family. Find the mode number of children per family Find the standard deviation of the number of children per family. Construct a histogram using single-valued classes of data
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.
o study the composition of families in Winslow, Arizona, forty randomly selected married couples were surveyed to determine the number of children in each family. The following results were obtained:
3 1 0 4 1 3 2 2 0 2 0 2 2 1
4 3 1 1 3 4 2 1 3 0 1 0 2 5
1 2 3 0 0 1 2 3 1 2 0 2
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Organize the given data by creating a frequency distribution.
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Find the
mean number of children per family. -
Find the
median number of children per family. -
Find the
mode number of children per family -
Find the standard deviation of the number of children per family.
-
Construct a histogram using single-valued classes of data
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