Question

The following nine values represent race finish times in hours for a randomly selected group ofparticipants in an extreme 10k race (a 10k race with obstacles). Which of the following is closest tothe mean of the following data set?1.0, 1.2, 1.2, 1.3, 1.4, 1.5, 1.5, 1.7, 2.1

Answer 1

Answer:

The mean for the given sample of finish race time is 1.43 hours.

Step-by-step explanation:

We are given the following in the data set:

1.0, 1.2, 1.2, 1.3, 1.4, 1.5, 1.5, 1.7, 2.1

Formula:

$Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}$

$Mean =\displaystyle\frac{12.9}{9} = 1.43$

The mean for the given sample of finish race time is 1.43 hours.