Concept explainers
(a)
To find: The sample size.
(a)
Explanation of Solution
Given:
The data set is:
112 |
128 |
108 |
129 |
125 |
153 |
155 |
132 |
137 |
The provided data represents that there are total 9 observations. Thus, the sample size is 9.
(b)
To find: The sum of the provided observations.
(b)
Answer to Problem 1PP
The sum is 1179.
Explanation of Solution
The sum of the provided observations can be calculated as:
Thus, the required sum is 1179.
(c)
To fin: The mean of the provided observation and apply the units after calculation.
(c)
Answer to Problem 1PP
The mean is 131 mm Hg
Explanation of Solution
The mean for the provided data set can be computed as:
Thus, the mean is 131 mm Hg.
(d)
To find: The sum of square.
(d)
Answer to Problem 1PP
The value of the sum of square is 2036.
Explanation of Solution
The sum of square is computed as:
112 | -19 | 361 |
128 | -3 | 9 |
108 | -23 | 529 |
129 | -2 | 4 |
125 | -6 | 36 |
153 | 22 | 484 |
155 | 24 | 576 |
132 | 1 | 1 |
137 | 6 | 36 |
|
Thus, the sum of square is 2036.
(e)
To find: The variance for the provided data set.
(e)
Answer to Problem 1PP
The variance is 254.2
Explanation of Solution
Variance for the provided data set is computed as:
(f)
To find: The standard deviation for the provided data set.
(f)
Answer to Problem 1PP
The standard deviation is 15.950
Explanation of Solution
Standard deviation for the provided data set is computed as:
Thus, the standard deviation is 15.950.
(g)
To find: The coefficient of variation.
(g)
Answer to Problem 1PP
The coefficient of variation is 12.176%
Explanation of Solution
The coefficient of variation can be computed as:
The coefficient of variation is 12.176%.
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Chapter 3 Solutions
The Analysis of Biological Data
- Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw HillBig Ideas Math A Bridge To Success Algebra 1: Stu...AlgebraISBN:9781680331141Author:HOUGHTON MIFFLIN HARCOURTPublisher:Houghton Mifflin Harcourt