4th Period 2024 Fall Exam

Front

What is a scatter plot?

Back

A scatter plot is a graph that shows the relationship between two quantitative variables by displaying data points on a two-dimensional axis.

Front

What does a negative relationship in a scatter plot indicate?

Back

A negative relationship indicates that as one variable increases, the other variable tends to decrease.

Front

What is the standard deviation?

Back

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

Front

What is the interquartile range (IQR)?

Back

The interquartile range (IQR) is the difference between the first quartile (Q1) and the third quartile (Q3) in a data set, representing the middle 50% of the data.

Front

How do you determine the number of students represented in a histogram?

Back

To determine the number of students represented in a histogram, sum the frequencies of all the bins.

Front

What is a positive association in a graph?

Back

A positive association means that as one variable increases, the other variable also tends to increase.

Front

What is a negative association in a graph?

Back

A negative association means that as one variable increases, the other variable tends to decrease.

Front

What is the mean?

Back

The mean is the average of a set of numbers, calculated by dividing the sum of all values by the number of values.

Front

What is the median?

Back

The median is the middle value in a data set when the numbers are arranged in order.

Front

What is a histogram?

Back

A histogram is a graphical representation of the distribution of numerical data, using bars to show the frequency of data points in specified ranges.