[5] The ages of residents in Calvin City are given in the following frequency distribution. Consider these data to be a population. Approximate the mean and standard deviation of the ages. your calculator for this one, but remember to show your "work.") (Use AGE FREQUENCY 0-9 283 10-19 203 20-29 217 30-39 256 40-49 176 50-59 92 60-69 21 70-79 23 80-89 12 90-99 3
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.
![[5] The ages of residents in Calvin City are given in the following frequency distribution. Consider
these data to be a population. Approximate the mean and standard deviation of the ages.
your calculator for this one, but remember to show your "work.")
(Use
AGE
FREQUENCY
0-9
283
10-19
203
20-29
217
30-39
256
40-49
176
50-59
92
60-69
21
70-79
23
80-89
12
90-99
3](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1639e60e-89cf-4f82-a7ff-e5a1f29b866b%2F30119109-419c-41ae-a69f-e3eb2a517a48%2Fo7ht4wi_reoriented.jpeg&w=3840&q=75)
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