Question

Two groups of students tested the same wind-up toy. Each group conducted four trials to find out how long it takes the toy to travel 1 meter. Find the average time for each group's four trials.

a) Group 1: 4.25 seconds, Group 2: 3.75 seconds
b) Group 1: 4.00 seconds, Group 2: 3.50 seconds
c) Group 1: 4.50 seconds, Group 2: 4.00 seconds
d) Group 1: 4.75 seconds, Group 2: 4.25 seconds

Answer 1

The average time for Group 1's four trials is 4.375 seconds, and for Group 2, it is 3.875 seconds.

Step-by-step explanation:

To find the average time it took for each group's wind-up toy to travel 1 meter across their four trials, we add up the times for each group's four trials and then divide the total by four, as there are four trials in each group.

Calculations for Group 1:

(4.25 seconds + 4.00 seconds + 4.50 seconds + 4.75 seconds) / 4 trials = 17.5 seconds / 4 trials = 4.375 seconds

Calculations for Group 2:

(3.75 seconds + 3.50 seconds + 4.00 seconds + 4.25 seconds) / 4 trials = 15.5 seconds / 4 trials = 3.875 seconds

Therefore, the average time for Group 1's four trials is 4.375 seconds, and the average time for Group 2's four trials is 3.875 seconds.