Concept explainers
a.
To calculate:Mean
a.
Answer to Problem 30PR
The mean value of the data set is 10.5294
Explanation of Solution
Given information:
Number of terms= 17
Used formula:
Calculation:
The mean of a data set is the sum of the terms divided by the total number of terms. Using math notation, we have:
Sum of terms
Numbers of terms=17
b.
To calculate: Median
b.
Answer to Problem 30PR
The median value of the data set is 10
Explanation of Solution
Given information:
Number of terms= 17
Calculation:
(ii) The median is the middle number in a sorted list of numbers. So, to find the median, we need to place the numbers in value order and find the middle number.
Ordering the data from least to greatest, we get:
So, the median is 10.
c.
To calculate: Mode
c.
Answer to Problem 30PR
The mode value of the data set is 9 and 10
Explanation of Solution
Given information:
Number of terms= 17
Calculation:
(iii) The mode of a set of data is the value in the set that occurs most often.
Ordering the data from least to greatest, we get:
Since both 9 and 10 occur 4 times, the modes are 9 and 10 (this data set is bimodal).
d.
To calculate: Range
d.
Answer to Problem 30PR
The range value of the data set is 7
Explanation of Solution
Given information:
Number of terms= 17
Calculation:
(iv) The range is the difference between the highest and lowest values in the data set.
Ordering the data from least to greatest, we get:
The lowest value is 8.
The highest value is 15.
The range
e.
To calculate: Standard deviation
e.
Answer to Problem 30PR
The standard deviation value of the data set is
Explanation of Solution
Given information:
Number of terms= 17
Used formula:
Calculation:
f.
To calculate: Outliers
f.
Answer to Problem 30PR
No any outliers
Explanation of Solution
Given information:
Number of terms= 17
Calculation:
There have no any outliers because no have any common number in the given question.
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Glencoe Algebra 2 Student Edition C2014
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