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GRE
GRE Quantitative Reasoning Section

Percentile Comparison of Sales Data

Very Hard Data Analysis Descriptive Statistics

In a data analysis segment, we are examining the weekly sales data for two different stores, Store X and Store Y. The following statistics were collected:

Store X has a mean weekly sales of $1200 with a standard deviation of $300. The sales data for Store X follows a normal distribution.

Store Y has a mean weekly sales of $1800 with a standard deviation of $500. The sales data for Store Y is also normally distributed.

We need to compare the quantities below:

Quantity A: The value that represents the 90th percentile of the weekly sales for Store X.

Quantity B: The value that represents the 75th percentile of the weekly sales for Store Y.

Which of the following options is true?

Hint

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Correct4.1K
% Correct73%