UNIT TEST REVIEWER

Front

Find the variance of Dave's score in three exams. Round to tenths.

Back

113.6

Front

What type of data is this: Your favorite ice cream flavor?

Back

Qualitative

Front

What do you do if there are two numbers in 'the middle' when you are finding the median?

Back

Add the two numbers then divide by 2.

Front

You have a coupon for a free 3-topping pizza. If there are 15 total toppings to choose from, how many different pizzas are possible?

Back

455

Front

__________ is a set of all possible outcomes in an experiment.

Back

Sample Space

Front

What is the formula for variance?

Back

Variance = (Σ(x - μ)²) / N, where μ is the mean and N is the number of data points.

Front

Define 'median' in statistics.

Back

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

Front

What is the difference between qualitative and quantitative data?

Back

Qualitative data describes characteristics or qualities, while quantitative data represents numerical values.

Front

How do you calculate the mean of a data set?

Back

Mean = (Σx) / N, where Σx is the sum of all data points and N is the number of data points.

Front

What is a discrete variable?

Back

A discrete variable is a type of quantitative variable that can take on a finite number of values.