08) HS: Measures of Central Tendency II

Front

What is the definition of 'mean' in statistics?

Back

The mean is the average of a set of numbers, calculated by adding all the numbers together and dividing by the count of numbers.

Front

What is the definition of 'median' in statistics?

Back

The median is the middle value in a data set when the numbers are arranged in ascending order.

Front

What is the definition of 'mode' in statistics?

Back

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

Front

Can a data set have more than one mode?

Back

Yes, a data set can have multiple modes if multiple values appear with the same highest frequency.

Front

How do you calculate the mean of a data set?

Back

Add all the values together and divide by the number of values.

Front

How do you find the median of a data set with an odd number of values?

Back

Arrange the values in ascending order and select the middle value.

Front

How do you find the median of a data set with an even number of values?

Back

Arrange the values in ascending order and calculate the average of the two middle values.

Front

What is the mean of the following numbers: 2, 57, 38, 42, 6?

Back

Mean = (2 + 57 + 38 + 42 + 6) / 5 = 29.

Front

What is the median of Roger's bowling scores: 155, 165, 138, 172, 127, 193, 142?

Back

Arrange the scores: 127, 138, 142, 155, 165, 172, 193. Median = 155.

Front

If a theater made $6,203.25 from selling 135 tickets, how much is the cost of one ticket?

Back

Cost per ticket = $6,203.25 / 135 = $45.95.