1. Chapter 2 Section 2.4A Worksheet

2. 1.

3. Section 2.4A Worksheet 2.

4. Section 2.4A Worksheet 3. (  x - s,  x + s) = (1500 – 1(200), 1500 + 1(200) ) =($1,300, $1,700) 68% of the farms value between $1,300 and $1,700 per acre. 4. N = 75; (68%)(75) = (.68)(75) = 51. 51 farms will value between $1,300 and $1,700 per acre. N = 25; (68%)(25) = (.68)(25) = 17. 17 farms will value between $1,300 and $1,700 per acre. At least 75% of the 400 meter dash times lie between 54.97 and 59.17 seconds. 5. For k=2, we need values that are 2 standard deviations from the mean.

5. Section 2.4A Worksheet 6.

6. Section 2.4A Worksheet 7.

7. Section 2.4A Worksheet 8.