Unit 5 Review: Exploratory Data Analysis

Front

What is the mean of the following data set: 2, 9, 10, 6, 8?

Back

The mean is 7.

Front

What is Quartile 1 (Q1) of the data set: 5, 5, 9, 12, 18, 22, 25?

Back

Quartile 1 (Q1) is 5.

Front

What is the maximum value in the following set: 58, 66, 64, 60?

Back

The maximum value is 66.

Front

What is the median of the data set: 3, 17, 17, 11, 8, 13, 5, 18?

Back

The median is 12.

Front

If Sam tested every 50th candy bar from a production of 20,000 and found 15% did not have enough peanuts, how many candy bars are affected?

Back

3,000 candy bars do not have enough peanuts.

Front

Define 'mean' in statistics.

Back

The mean is the average of a set of numbers, calculated by dividing the sum of all values by the number of values.

Front

Define 'median' in statistics.

Back

The median is the middle value of a data set when it is ordered from least to greatest.

Front

Define 'mode' in statistics.

Back

The mode is the value that appears most frequently in a data set.

Front

What is the purpose of exploratory data analysis (EDA)?

Back

EDA is used to summarize the main characteristics of a data set, often using visual methods.

Front

What is a box plot?

Back

A box plot is a standardized way of displaying the distribution of data based on a five-number summary: minimum, first quartile, median, third quartile, and maximum.