The following is a random sample of ages summarized as a stem-and-leaf plot. (Note for some browsers the plot may not view correctly, make sure you are seeing 4 rows of data.)1 1467 211467789 355689 4011 Round answers accurate to 4 decimal places.a. What is the mean age? Mean = yearsb. What is the median age? Median = yearsc. What is the standard deviation of ages? Standard Deviation = yearsd. What is the variance of ages? Variance = years2

The objective of the question is to calculate the mean, median, standard deviation, and variance of…

Answered: The following is a random sample of…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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The following is a random sample of ages summarized as a stem-and-leaf plot. (Note for some browsers the plot may not view correctly, make sure you are seeing 4 rows of data.)

1	1	4	6	7
2	1	1	4	6	7	7	8	9
3	5	5	6	8	9
4	0	1	1

Round answers accurate to 4 decimal places.

a. What is the mean age?
Mean = years

b. What is the median age?
Median = years

c. What is the standard deviation of ages?
Standard Deviation = years

d. What is the variance of ages?
Variance = years²

Definition Definition Middle value of a data set. The median divides a data set into two halves, and it also called the 50th percentile. The median is much less affected by outliers and skewed data than the mean. If the number of elements in a dataset is odd, then the middlemost element of the data arranged in ascending or descending order is the median. If the number of elements in the dataset is even, the average of the two central elements of the arranged data is the median of the set. For example, if a dataset has five items—12, 13, 21, 27, 31—the median is the third item in ascending order, or 21. If a dataset has six items—12, 13, 21, 27, 31, 33—the median is the average of the third (21) and fourth (27) items. It is calculated as follows: (21 + 27) / 2 = 24.

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