IM 6th grade Unit 8

Front

What is the mean of a data set?

Back

The mean is the average of a data set, calculated by adding all the numbers together and dividing by the total count of numbers.

Front

How do you calculate the mean of the data set {1, 3, 5, 5, 7, 8, 9, 12}?

Back

(1 + 3 + 5 + 5 + 7 + 8 + 9 + 12) / 8 = 6.25

Front

What is the mode of a data set?

Back

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

Front

What is the mode of the data set {1, 3, 5, 5, 7, 8, 9, 12}?

Back

5 is the mode because it appears twice, more than any other number.

Front

What is the range of a data set?

Back

The range is the difference between the highest and lowest values in a data set.

Front

What is the range of the data set {1, 3, 5, 5, 7, 8, 9, 12}?

Back

12 - 1 = 11, so the range is 11.

Front

What is a dot plot?

Back

A dot plot is a simple way to display data using dots above a number line, where each dot represents one data point.

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 intervals.

Front

How do you find the mean from a dot plot?

Back

Count the total number of data points, multiply each value by its frequency, sum these products, and divide by the total number of data points.

Front

What does NP mean in data analysis?

Back

NP stands for 'Not Possible', indicating that a calculation cannot be performed.