Analyzing categorical data

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James is interested in the relationship between weather conditions and whether the downtown train he sometimes takes runs on time. For a year, James records whether each day is sunny, cloudy, rainy, or snowy, as well as whether this train runs on time or is delayed. His results are displayed in the table below.

	On time	Delayed
Sunny	$167$ ‍	$3$ ‍
Cloudy	$115$ ‍	$5$ ‍
Rainy	$40$ ‍	$15$ ‍
Snowy	$8$ ‍	$12$ ‍

The percent of days that the train ran on time was
Your answer should be
an integer, like $6$ ‍
a simplified proper fraction, like $3 / 5$ ‍
a simplified improper fraction, like $7 / 4$ ‍
a mixed number, like $1 3 / 4$ ‍
an exact decimal, like $0.75$ ‍
a multiple of pi, like $12 pi$ ‍ or $2 / 3 pi$ ‍
$%$ ‍.
Round your answer to the nearest tenth of a percent.

Staging content lifeboat

Course: Staging content lifeboat > Unit 13

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