12/6/24 SEMESTER EXAM B

Front

What is the mean of the following set of numbers: 50, 58, 69, 70, 70, 68, 75, 25, 67? (Round to nearest whole number)

Back

The mean is 61.3.

Front

What type of graph is used to represent frequency distributions with intervals?

Back

Histogram.

Front

What does ₁₀P₅ represent in permutations?

Back

Permutations with 10 choices and 5 positions.

Front

What is the upper quartile of the data set: 2, 4, 6, 6, 7, 8, 10?

Back

The upper quartile is 8.

Front

Find the mean of the following numbers: 8, 14, 35, 26, 25, 14.

Back

The mean is 20.3.

Front

How do you calculate the mean of a data set?

Back

Add all the numbers together and divide by the total count of numbers.

Front

What is a bar graph used for?

Back

To compare different categories of data.

Front

What is the difference between a histogram and a bar graph?

Back

A histogram displays frequency distributions of continuous data, while a bar graph compares discrete categories.

Front

Define the term 'quartile'.

Back

A quartile is a type of quantile that divides a data set into four equal parts.

Front

What is the formula for calculating permutations?

Back

The formula is n! / (n - r)!, where n is the total number of items, and r is the number of items to choose.