The animal trainer in Exercise 8 in this section selected another group of dogs who were much older than the first group and measured their reaction times to the same stimulus. Construct a histogram, a frequency polygon, and an give for the data.
Class limits Frequency
2.3–2.9 .........1
3.0–3.6 .........3
3.7–4.3 .........4
4.4–5.0 .........16
5.1–5.7 .........14
5.8–6.4 ........4
Analyze the results and compare the histogram for this group with the one obtained in Exercise 8 in this section. Are there any differences in the histograms? (The data in this exercise will be used for Exercise 16 in Section 3–1 and Exercise 26 in Section 3–2.)