The First Row in a Movie Theater Contains 20 Seats

question 221

Multiple Choice

The first row in a movie theater contains 20 seats.As you move toward the back, each row has 1 additional seat.If there are 18 rows, what is the capacity of the theater?

• A) 513
• B) 570
• C) 333
• D) 522
• E) 1,083

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Definitions:

One-sample Chi-square Test

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

Degrees of Freedom

The number of independent pieces of information available to estimate another piece of information or the parameters in a statistical model.

One-sample Chi-square Test

A statistical test used to compare the observed distribution of data with an expected distribution to test the goodness of fit.

Medians

The middle value in a data set, which divides the set into two equal halves.