4) By inspection, determine which of the following sets of numbers has the smallest standard deviation.

a.2, 3, 4, 5

b.0, 0, 5, 5

c.5, 5, 5, 5

d.4, 4, 4, 5

Exhibit 2-12 Listed below is a stem-and-leaf plot of the times it took 13 students to drink a 12 ounce beverage. Values for stems represent seconds and values for leaves represent tenths of a second. 3| 1234 3| 5 4| 0 5| 6 6| 11379 7| 8| 2

Refer to Exhibit 2-12. What was the median time to drink the beverage?

a.6.9 seconds.

b.4.0 seconds.

c.5.6 seconds.

d.3.5 seconds.

Exhibit 2-12 Listed below is a stem-and-leaf plot of the times it took 13 students to drink a 12 ounce beverage. Values for stems represent seconds and values for leaves represent tenths of a second. 3| 1234 3| 5 4| 0 5| 6 6| 11379 7| 8| 2

Refer to Exhibit 2-12. The upper quartile is

a.6.5 seconds.

b.6.9 seconds.

c.6.1 seconds.

d.5.6 seconds.

Exhibit 2-12 Listed below is a stem-and-leaf plot of the times it took 13 students to drink a 12 ounce beverage. Values for stems represent seconds and values for leaves represent tenths of a second. 3| 1234 3| 5 4| 0 5| 6 6| 11379 7| 8| 2

Refer to Exhibit 2-12. The upper quartile is

a.6.5 seconds.

b.6.9 seconds.

c.6.1 seconds.

d.5.6 seconds.