Review for Probability and Statistics test

Front

What is the formula to calculate the total number of possible outcomes when answering multiple choice questions?

Back

Front

How do you calculate the mean of a set of numbers?

Back

The mean is calculated by summing all the numbers and dividing by the total count of numbers.

Front

What is the total number of possible combinations for a password consisting of 4 digits (0-9) followed by 2 letters (A-Z)?

Back

Front

How do you calculate the percent decrease in a value?

Back

Front

What is a circle graph and how is it used to represent data?

Back

A circle graph, or pie chart, represents data as slices of a circle, showing the proportion of each category relative to the whole.

Front

What is the difference between permutations and combinations?

Back

Permutations consider the order of selection, while combinations do not.

Front

How do you find the probability of an event?

Back

Probability is calculated as the number of favorable outcomes divided by the total number of possible outcomes.

Front

What is the range of a data set?

Back

The range is the difference between the maximum and minimum values in the data set.

Front

How do you interpret a standard deviation in a data set?

Back

Standard deviation measures the amount of variation or dispersion in a set of values.

Front

What is a normal distribution?

Back

A normal distribution is a probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence.