Unit 7 Flashcard

Front

What is the median in a data set?

Back

The median is the middle value when the data set is ordered from least to greatest. If there is an even number of observations, the median is the average of the two middle numbers.

Front

How do you determine which class has a higher median?

Back

To determine which class has a higher median, you must calculate the median for each class and compare the two values.

Front

What does it mean if 75% of temperatures are below 71 degrees?

Back

It means that three-quarters of the recorded temperatures are less than 71 degrees, indicating a lower temperature trend.

Front

How do you calculate the percentage of students within a specific height range?

Back

To calculate the percentage of students within a specific height range, divide the number of students in that range by the total number of students and multiply by 100.

Front

What is a mode in a data set?

Back

The mode is the value that appears most frequently in a data set. A data set can have one mode, more than one mode, or no mode at all.

Front

Can a data set have more than one mode?

Back

True, a data set can have multiple modes if two or more values appear with the same highest frequency.

Front

What is the significance of the day with the least amount of cars sold?

Back

Identifying the day with the least amount of cars sold can help in understanding sales trends and making inventory or staffing decisions.

Front

What is the formula to find the percentage of a specific value in a data set?

Back

Percentage = (Part / Whole) x 100.

Front

What does it indicate if a class has a higher median than another?

Back

It indicates that, on average, the students in that class performed better or have higher values in the measured characteristic.

Front

How can you visually represent the distribution of data?

Back

You can use graphs such as histograms, box plots, or scatter plots to visually represent the distribution of data.