Concept explainers
a.
To draw: A histogram of given data using five intervals beginning with
a.
Explanation of Solution
Given Information: A table showing the times of
Histogram:
Drawing the axes and a bar to represent the frequency of each interval,
b.
To describe: Measures of center and variation representing the data best.
b.
Answer to Problem 9Q
Mean and standard deviation respectively.
Explanation of Solution
Given Information: A table showing the times of
As the data is neither left-skewed nor right-skewed, it is symmetric. This implies that the best measure for center is mean and best measure for variation is standard deviation.
c.
To interpret: The data when presentations are supposed to be
c.
Explanation of Solution
Given Information: A table showing the times of
As can be observed in the histogram, there spike is at
Chapter 11 Solutions
Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
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