# CHAPTER 11

# CHAPTER 11 SOLUTIONS

### 11.1 SECTION 11.2

**11.1** When all information is available, the calculations are in Table 11.1. As in Example 11.4, values apply from the current *y*-value to the next one.

**11.2** (a)

(b)

**11.3**

**Table 11.1** Calculations for Exercise 11.1.

**Table 11.2** Calculations for Exercise 11.4.

### 11.2 SECTION 11.3

**11.4** There are 392 observations and the calculations are in Table 11.2. For each interval, the ogive value is for the right-hand endpoint of the interval, while the histogram value is for the entire interval. Graphs of the ogive and histogram appear in Figures 11.1 and 11.2.

**Figure 11.1** Ogive for Exercise 11.4.

**Figure 11.2** Histogram for Exercise 11.4.