Pulse Rates for Men and Women. To answer Exercises 90–93, refer to Figure 10, which includes comparative dotplots of the pulse rates for males and females.2

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Figure 3.10: FIGURE 10 Comparative dotplots of pulse rates, by gender.

Question 3.90

90. Examine Figure 10.

  1. Without doing any calculations, what is your impression of which gender, if any, has the higher overall pulse rate?
  2. Find the mean pulse rate for the males by estimating the location of the balance point.
  3. Find the mean pulse rate for the females by estimating the location of the balance point.
  4. Based on (b) and (c), which gender has the higher mean pulse rate? Does this agree with your earlier impression?