Lesson 8-1
What is a statistical question?
Something that has more than one answer; variation
Another word for the mean is...
average
In a box and whisker plot, what do the whiskers represent?
The minimum and maximum
There are four tallies for students who own dogs, what is the frequency?
4
The MAD stands for...?
mean absolute deviation
What is a non-statistical question?
Something that has one answer; no variation
The mode is...
The number that repeats the most
What does the line in the middle of the box in a box and whisker plot represent?
median
6th grade
Calculate the MAD for the following data set: 8, 14, 22, 16
MAD = 4
Is the following a statistical question or not: What is your favorite color?
Not statistical
What is the mean of the data set: 27, 26, 25, 20
24.5
Identify the first and third quartile of the following data set: 40, 45, 55, 60, 65, 70, 75
1st quartile = 45
3rd quartile = 70
A histogram is a graph that uses ______ to show the frequency of ranges or groups of data.
bars
What are two ways to measure the center of a data set?
mean & median
Is the following a statistical question or not: Students rated their school subjects in order from most favorite to least favorite.
Statistical
What is the mode of the following data set: 0, 5, 4, 8, 2
no mode
Identify the minimum and maximum values of the following data set: 12, 14, 12, 14, 10, 11, 15, 13, 13, 11, 12, 12, 7, 14, 17
minimum = 7
maximum = 17
tally marks
List at least one way you can describe the variability in a data set.
range, IQR, or MAD
Is the following a statistical question or not: How tall are students in the 6th grade?
statistical
What is the median of the following data set: 11, 13, 13, 11, 13
13
Identify the median of the following data set: 3, 1, 3, 7, 5, 2, 3, 6, 3
median = 3
True or False. When setting up a histogram (bar graph), you must divide the data into equal intervals along the x-axis.
True
Find the IQR of the following data set: 10, 20, 35, 45, 45, 50
IQR = 25