TABLE 4-12 Jake Woke Up Late in the Morning on the Day

question 135

Short Answer

TABLE 4-12
Jake woke up late in the morning on the day that he has to go to school to take an important test. He can either take the shuttle bus which is usually running late 20% of the time or ride his unreliable motorcycle which breaks down 40% of the time. He decides to toss a fair coin to make his choice.
-Referring to Table 4-12, if Jake, in fact, gets to the test on time, what is the probability that he rode his bike?

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Definitions:

Categorical Variables

Categorical variables are types of variables in statistics that represent categories, possessing qualitative properties that differentiate one group from another.

One-sample Chi-square

A statistical test used to determine whether there is a significant difference between the observed frequencies and the expected frequencies in one categorical dataset.

Two-sample Chi-square

The Two-sample Chi-square test is a statistical method used to determine if there is a significant difference between the distributions of two categorical variables.

Expected Values

The predicted value of a variable, computed as a weighted average of all possible values.