Concept explainers
(a)
To graph: Construct a dot plot for the given data set.
(a)
Explanation of Solution
Given information: The lengths of the first 25 words from Toni Morrison’s Song of Solomon is given as follows
2, 3, 4, 10, 2, 11, 2, 8, 4, 3, 7, 2, 7, 5, 3, 6, 4, 4, 2, 5, 8, 2, 3, 4, 4.
Graph:
A positively skewed data is the data in which most of the values lie to the left. Here, most of the observations are lying between 2 and 5.
Interpretation: As, the data seems to be skewed towards right so it is a positively skewed data with highest frequency at 2 and 4.
(b)
Percentage of words which have letters equal to or greater than 8 in a sample.
(b)
Answer to Problem 46E
The percentage of words with letters 8 or more is
Explanation of Solution
Given:
Total number of words in a sample
Number of words with length 8 or more
Calculation:
Let p be percentage of words with letters 8 or more.
Chapter 1 Solutions
PRACTICE OF STATISTICS F/AP EXAM
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