To find the mean with the 31 minutes replaced by 35 minutes, we first need to calculate the mean of the original data:
Original data:
25, 28, 30, 31, 33, 35, 36, 38, 40
Mean = (25 + 28 + 30 + 31 + 33 + 35 + 36 + 38 + 40) / 9
Mean = 296 / 9
Mean = 32.9
Now, if we replace the 31 minutes with 35 minutes:
Revised data:
25, 28, 30, 35, 33, 35, 36, 38, 40
Mean = (25 + 28 + 30 + 35 + 33 + 35 + 36 + 38 + 40) / 9
Mean = 300 / 9
Mean = 33.3
Therefore, the mean with the 31 minutes replaced by 35 minutes is 33.3 minutes, which rounds to 33.
Jacob collected the times in minutes it took runners in his run club to run a 5k. The data can be seen in the spreadsheet. He rounded the results to the nearest minute. He then created a line graph to view the data. What is the mean if you replace the 31 minutes with 35 minutes? Round to the nearest tenth. (1 point) 36.1 minutes 36.4 minutes 36.3 minutes 36 minutes
1 answer
1 answer