7/8 Accel. Probability Topic B Review

Front

What is the mean of the following numbers: 28, 18, 19, 18, 17?

Back

The mean is calculated by adding all the numbers together and dividing by the count of numbers. Mean = (28 + 18 + 19 + 18 + 17) / 5 = 100 / 5 = 20.

Front

How do you find the range of a set of numbers?

Back

The range is found by subtracting the smallest number from the largest number in the set. Range = Largest number - Smallest number.

Front

What are the five numbers needed to create a box plot?

Back

The five numbers are Minimum, Quartile 1, Median, Quartile 3, and Maximum.

Front

What is the median of a set of numbers?

Back

The median is the middle number when the numbers are arranged in order. If there is an even number of observations, the median is the average of the two middle numbers.

Front

What does a box plot represent?

Back

A box plot visually represents the distribution of a dataset, showing the median, quartiles, and potential outliers.

Front

How do you calculate the median from a box plot?

Back

The median is represented by the line inside the box of the box plot.

Front

What is the definition of a quartile?

Back

A quartile is a type of quantile that divides a dataset into four equal parts, with each part representing a quarter of the data.

Front

What is the difference between mean and median?

Back

The mean is the average of all numbers, while the median is the middle value when the numbers are sorted.

Front

How do you determine the mode of a dataset?

Back

The mode is the number that appears most frequently in a dataset.

Front

What is a box plot used for?

Back

A box plot is used to summarize a dataset by displaying its central tendency, variability, and skewness.