Statistical or Not?
Is this a statistical question: How many students are wearing Jordans in this class?
No. There's only one right answer.
What is the mode? 1.06, 9.3, 59.59, 6.01, 25.17, 1.06, 6, 1.06
1.06
what is the range of this data set: 5, 10, 17, 19, 35.3, 3, 4, 56, 7, 1.7
35.3 - 1.7 = 33.6
What fraction or percentage of data is in each of the 4 sections of a box and whisker plot?
1/4 or 25%
What is another name for Quartile 2?
Should a statistical question have a single answer?
No. Statistical questions should have multiple answers. They need variation in the data and often ask for averages or typical values.
what is the median of this data set: 33, 4, 5, 6, 10, 15, 17, 18, 19, 21, 29
4, 5, 6, 10, 15, 17, 18, 19, 21, 29, 33
median is 17
What is is called when the data is not symmetrical or uniform on a histogram?
Skewed
What percent of the data is in the box?
50%
Is this a statistical question: What is the typical favorite sport of Warhawk students?
Yes
What is another word for the mean?
the AVERAGE
what is the second quartile? 29, 34, 39, 43, 73, 91, 198
91
What is the highest point of a data display called?
the Peak
What is the first quartile? 1, 2, 3, 4, 4, 5, 6
2
Whats the mean? 1, 1, 2, 3, 4, 4, 5, 6, 7, 8
41/10 = 4.1
Whats the range? 35, 49, 53, 69, 69, 77, 84
84-35=49
What is the Upper Quartile? 1, 2, 3, 4, 4, 5, 6
5
Is this a statistical question: What is the average weight of 11th grade students in America?
yes
What is the average (mean) grade for a student who's grades are: 55, 65, 75, 75, 85
sum = 355 / 5 = 71
On a dot plot, what does one dot typically represent?
One dot is one person or one data point.
What is the IQR of the data set: 1, 2, 3, 4, 4, 5, 6