Statistical or non statistical?
How many siblings do the students in our class have?
Statistical
What is the shape of this data?
Skewed to the right.
How can you find the mean of a data set?
You would add up all the data values and divide the sum by the number of data points.
What type of data display is this? Dot plot, box plot, histogram, etc.
Histogram
How many classmates have visited MORE THAN 15 states?
12
Dr. Dre is a dentist. He needs to report on the average number of cavities that his patients have.
1,0,1,5,6,3,4
Round to your nearest tenth.
2.9
Is this a statistical question: How many minutes do 8th grade students typically spend on homework nightly?
Statistical
What is the mode?
89%.
Find the mean of these numbers:
2, 57, 38, 42, 6
29 is the mean
How many observations were collected in this frequency table?
20
What is the IQR?
10 because 21 - 11 is 10.
What are the modes in this data set?
3 and 5
Is this a statistical question: How many wins does the Milbank football team have?
No, it's non-statistical.
What is the range?
The range is 8 because 66-58 = 8.
To find the ________ you put all numbers in order from least to greatest and find the number that is in the middle.
median
Using this box plot, what data value is the upper quartile (Q3)?
64
Looking at the box plot, what is the IQR?
11 because 96 - 85 is 11.
Explain how to find the MAD:
58, 38, 54, 48, 26, 36
10 is the MAD. I first found the mean, then I subtracted the mean from each number, and finally I found the mean of the absolute differences.
Is this a statistical question: What time does school get out today?
No, its a non-statistical question.
What is the peak AND the shape of the data.
The peak of the data occurs within the category "30-39" text messages, and the shape of the data is symmetrical.
To find the ______ you put all numbers in order from least to greatest and then take the largest number minus the smallest number.
Range
______ is the value found by subtracting Q3 by Q1.
Interquartile Range (IQR)
What is the value of the missing number in the list of data set below, if the MEAN "Average" is 14.
5, x, 21, 21, 7, 13
Sara mowed 4 lawns. She earned $12, $10, $9 and $15 for 4 lawns. What is the Mean Absolute Deviation (MAD)?
2
Is this a statistical question: What is your favorite restaurant in Milbank?
Not Statistical
What should someone do when two numbers are in the middle when finding the median?
Add them up and divide by 2.
(Find the average.)
Find the Mean and the Median of:
8, 14, 32, 6, 15
The mean is 15.
The median is 14.
How many students are between 60 and 63 inches tall?
7 students
Find the Mean Absolute Deviation for the following Data set: 19, 32, 24
Round your MAD to the nearest tenth.
The MAD is 4.7
Find the IQR of: 62,63,64,64,70,72,76,77,81,81
77 - 64 = 13