Major Assessment 6 - Shape of Data Distributions Test

Front

What is the median in a set of numbers?

Back

The median is the middle value in a list of numbers sorted in ascending order. If there is an even number of observations, the median is the average of the two middle numbers.

Front

How do you find the median of Roger's bowling scores: 155, 165, 138, 172, 127, 193, 142?

Back

First, sort the scores: 127, 138, 142, 155, 165, 172, 193. The median is the middle score, which is 155.

Front

What does a right-skewed distribution look like?

Back

A right-skewed distribution has a longer tail on the right side, meaning that most of the data points are concentrated on the left.

Front

What does a left-skewed distribution look like?

Back

A left-skewed distribution has a longer tail on the left side, meaning that most of the data points are concentrated on the right.

Front

What is a symmetrical distribution?

Back

A symmetrical distribution is one where the left and right sides of the distribution are mirror images of each other.

Front

What is a histogram?

Back

A histogram is a graphical representation of the distribution of numerical data, showing the frequency of data points within certain ranges.

Front

What does it mean if a histogram is right-skewed?

Back

It means that the majority of the data points are concentrated on the left side, with fewer high values stretching out to the right.

Front

What is a stemplot?

Back

A stemplot is a method of displaying quantitative data in a graphical format, similar to a histogram, but it retains the original data values.

Front

How do you determine the mode of a set of scores?

Back

The mode is the value that appears most frequently in a data set.

Front

In the stemplot of exam scores, if the score 90 appears most often, what does that indicate?

Back

It indicates that 90 is the mode of the scores, meaning it was the most common score among the students.