A student timed his drive to work each day for three days. The times are shown below: 20 minutes
22 minutes
18 minutes
What was his mean time?

20 minutes

Step-by-step explanation:

The mean, or average of a data set can be found by adding all the values together, and dividing by the number of values.

The data set is: 20 minutes, 22 minutes and 18 minutes

1. Add the values together

Add all the numbers in the set together.

Data set: 20, 22, 18

Add them: 20+22+18

60

2. Divide by the number of values

Count how many numbers are in the set.

In this set, there are 3 numbers.

Divide 60 by 3

60/3 =20

20 minutes

His mean time is 20 minutes.

30 minutes

Step-by-step explanation:

Mean means the average so the average equals (20+22+18)/2

= 30

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