Financial Algebra Unit 4 Review

Front

What is the median commute time?

Back

The median commute time is the middle value of a data set when it is ordered from least to greatest. In this case, it is 30 minutes.

Front

What percentage of the data is between 90 and 140?

Back

50% of the data falls between the values of 90 and 140.

Front

Bran’s scooter gets approximately 45 miles per gallon. He is planning a 600-mile trip. About how many gallons of gas should he plan to buy?

Back

Bran should plan to buy approximately 12 gallons of gas for his trip.

Front

Which has a larger IQR?

Back

Steven has a larger Interquartile Range (IQR) compared to Zach.

Front

What value is the lower quartile (Q1)?

Back

The lower quartile (Q1) is the value that separates the lowest 25% of the data set from the rest. In this case, it is 60.

Front

What is the Interquartile Range (IQR)?

Back

The Interquartile Range (IQR) is the difference between the upper quartile (Q3) and the lower quartile (Q1). It measures the spread of the middle 50% of the data.

Front

How do you calculate the median of a data set?

Back

To calculate the median, order the data from least to greatest and find the middle value. If there is an even number of values, average the two middle values.

Front

What does it mean if a data set is skewed?

Back

A data set is skewed if it is not symmetrical and has a longer tail on one side. Right skewed means the tail is on the right, and left skewed means the tail is on the left.

Front

What is a quartile?

Back

A quartile is a type of quantile that divides a data set into four equal parts. The first quartile (Q1) is the median of the lower half, the second quartile (Q2) is the median, and the third quartile (Q3) is the median of the upper half.

Front

How do you find the range of a data set?

Back

The range is found by subtracting the smallest value from the largest value in the data set.