Chapter 2.2, Problem 20PB

Histogram for sugar For the breakfast cereal data, the figure below shows a histogram for the sugar values in grams.

1. a. Identify the intervals of sugar values used for the plot.
2. b. Describe the shape of the distribution. What do you think might account for this unusual shape? (Hint: How else are the cereals classified in Table 2.3?)
3. c. What information can you get from the dot plot or stem-and-leaf plot of these data shown in Exercises 2.15 and 2.19 that you cannot get from this plot?
4. d. This histogram shows frequencies. If you were to construct a histogram by using the percentages for each interval, how (if at all) would the shape of this histogram change?

Sugar (g)

Sugar dot plot For the breakfast cereal data given in Table 2.3, a dot plot for the sugar values (in grams) is shown:

1. a. Identify the minimum and maximum sugar values.
2. b. Which sugar outcomes occur most frequently? What are these values called?

Sugar (g)

2.19 Split Stems The figure below shows the stem-and-leaf plot for the cereal sugar values from Example 5, using split stems.

Stem and Leaf Plot for Cereal Sugar Values with Leaf Unit = 1000

1. a. What was the smallest and largest amount of sugar found in the 20 cereals?
2. b. What sugar values are represented on the 6th line of the plot?
3. c. How many cereals have a sugar content less than 5 g?