Flashcard Measures of Central Tendency

Front

What is the first step after choosing STAT Mode on a Casio calculator to find measures of central tendency?

Back

Put the data in List 1.

Front

How do you calculate the Interquartile Range (IQR)?

Back

Subtract the first quartile from the third quartile.

Front

What is the formula to find the mean of a set of data?

Back

Mean = (Sum of all values) / (Number of values).

Front

What is the sample standard deviation of the following data: 7, 7, 5, 7, 6, 4, 7, 7, 7, 6, 7, 6, 6, 7, 7, 5, 7?

Back

0.93.

Front

In STAT Mode, which option do you choose to find the sample standard deviation?

Back

sx.

Front

What is the definition of 'mean' in statistics?

Back

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

Front

What does 'median' represent in a data set?

Back

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

Front

How do you find the mode of a data set?

Back

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

Front

What is the range of a data set?

Back

The range is the difference between the highest and lowest values in the data set.

Front

What is the formula for calculating the variance of a sample?

Back

Variance = (Sum of squared deviations from the mean) / (Number of values - 1).