A Marathon Race Is 26 Mi and 385 Yd Long

question 86

Multiple Choice

A marathon race is 26 mi and 385 yd long.Estimate how many strides would be required to run a marathon.Assume a reasonable value for the average number of feet/stride.

• A)4.5 × 10⁴ strides
• B)4.5 × 10³ strides
• C)4.5 × 10⁵ strides
• D)4.5 × 10⁶ strides

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Definitions:

Standard Deviation

A statistical measure that quantifies the amount of variation or dispersion of a set of data values.

Variability

The extent to which data points in a set differ from each other and from the average of the set, indicating the spread or dispersion.

Double-Blind Study

A double-blind study is a research design in which neither the participants nor the experimenters know who is receiving a particular treatment, to prevent bias.

Experimental Group

In an experiment, the group of participants who are exposed to the independent variable to assess its effect on a dependent variable.