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Chapter 2: Q52. (page 117)

A race car driver records the finishing times for recent practice trials.

What is the meantime, in seconds, for the trials?

Short Answer

Expert verified

Meantime, in seconds, for the trials is 5.02seconds.

Step by step solution

01

Step 1. Understanding means value.

The mean value of a set of data points is the sum of those data points divided by the number of data points in the set

For example, a mean of 3,4,5 is

3+4+53=123=4.

02

Step 2. Fining the mean.

The 5 Data points given are:

5.09,5.10,4.95,4.91,5.05

Its mean can be calculated as shown:

X=5.09+5.10+4.95+4.91+5.055X=25.15X=5.02seconds

03

Step 3. Interpret the result.

Since the mean is 5.02 meantime, in seconds, for the trials is 5.02.

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