Statistical Questions
What are the 2 parts of a statistical Question?
Data must be collected to answer the question and the data must have variability.
Given the five number summary, what is the IQR?
minimum: 20
Q1: 30
Q2: 62
Q3: 70
Maximum: 92
What is 40 (70-30)
Given the data set, find the mean.
20, 40, 80, 90
What is 57.5
Given the data set, find the Median.
0, 5, 7, 8, 3, 1, 9, 9, 5, 8, 10, 1
What is 6
Given the data set, what is Q1?
20, 30, 80, 40, 100, 30, 30
What is 30
Mrs. Weber asked the class the question "What is your favorite color". Is this a statistical question?
What is yes
What is the range of the data set: 3, 2, 34, 5, 12, 14?
What is 32 (34 - 2)
Given the data set below, find the range.
5, 7, 10, 14, 16, 19
What is 14 (19-5)
Given the data set, find the median.
5, 6, 3, 2, 8, 9, 5, 5, 2
What is 5?
Given the data set, what is Quartile
3, 1, 2, 3, 5, 6, 2, 5
What is 5
How many years of experience do teachers at Gateway have? Is this a statistical question?
What is yes
What is one measure of variability for the data set below:
5, 8, 12, 11, 22, 7, 4, 0, 6, 24, 23, 22
The range: 24 (24-0)
The IQR:16.5 (22 - 5.5)
The MAD:~6.3
Here are a students grades: 90,60,80,70,50 Find the average or mean of the numbers.
What is 70
Is this the correct order to find the median?
12, 9, 5, 2, 3, 1? Explain.
No. They need to be ordered from least to greatest.
Given the data set, identify Q1, Q2, Q3.
1, 3, 2, 5, 6, 8, 16, 2, 4, 5, 2, 10, 21
What is
Q1=2
Q2=5
Q3=9
How many kids have Nike shoes?
Is this a statistical question? Explain why?
What is No; The answer to this question does not have a variability of answers.
Below is a 5 number summary. What is the IQR?
Minimum: 2
Q1:6
Q2: 8
Q3: 13
Maximum: 23
What is 7 (13-6)
Given the data set, Find the mean.
30, 50, 80, 210
What is 92.5
Given the data set, find the median.
11, 15, 6, 18, 4, 3, 12, 10, 12, 40, 43, 5
What is 11.5
Given the data set, find the median.
1, 5, 6, 8, 4, 3, 2, 10, 2, 4, 4, 5
What is 4
How many cities in the state of Washington have populations above 500,000? Is this a statistical or non-statistical question?
What is non-statistical. There will not be variability in the data collected.
Define upper and lower quartile.
What is Upper Quartile - the median of the upper half of the data set.
Lower Quartile - the median of the lower half of the data
Given the data set, find the MAD
200, 300, 400, 450, 500
What is 96
Given the data set, find the MAD. Round the MAD to the nearest tenth.
24, 40, 28, 31, 22, 33, 25
What is 4.9
Given the data set, find the five number summary.
1, 5, 6, 8, 4, 3, 2, 10, 2, 40, 43, 5
minimum-1
Q1-2.5
Q2-5
Q3-9
Maximum-43