The diameter of a nickel is 21 millimeters. Find the circumference of a nickel to the nearest millimeter.

Sole with work in 10 years, the average number of hours of tv watched per week by teenagers dropped from 23.9 to 21.4. find the percent of change.

which of the following sets of data would produce the largest value for an independent-measures t statistic? the two sample means are 10 and 20 with variances of 20 and 25 the two sample means are 10 and 20 with variances of 120 and 125 the two sample means are 10 and 12 with sample variances of 20 and 25 the two sample means are 10 and 12 with variances of 120 and 125

On the first of each month sasha runs a 5k race she keeps track of her times to track her progress her time in minutes is recorded in the table