Question

The table shows the finishing times for each of the four swimmers on the men’s 100 meter freestyle relay US Olympic team in 2008. The team’s average time is 47 seconds. Estimate the team’s finishing time, in seconds, using cluster estimation.

________ seconds

Answer 1

Answer: 188 seconds

Explanation:

add all numbers together in the chart and leave out .25

Answer 2

The team's finishing time is 188 seconds.

Explanation:

Given: Team's average time is 47 seconds means all players finishes in 47 seconds.

Cluster Estimation: Used to estimate sum & product when the numbers that we are adding or multiplying cluster near to a same number .

Here, all given time cluster near to the average time i.e., 47 seconds.

So, the team's finishing time = 47 + 47 + 47 + 47

= 4 × 47

= 188 seconds

Therefore, The team's finishing time is 188 seconds.