1C/1D/1E

A close-up on a child's eye Several people sitting in a row all using their smartphones.

RespondentID How often do you travel by plane? How tall are you? Is it rude to recline your seat on a plane?
1 3434278696 Once a year of less 6′ 3″ Yes, somewhat rude
2 3434275578 Once a year of less 5′ 8″ No, not rude at all
3 3434268208 Once a year of less 5′ 11″ No, not rude at all
4 3434250245 Once a month of less 5′ 7″ No, not rude at all
5 3434245875 Once a year of less 5′ 9″ No, not rude at all
6 3434235351 Once a month of less 6′ 2″ Yes, somewhat rude
7 3434218031 Once a year of less 6′ 0″ No, not rude at all
8 3434213681 Once a year of less 6′ 0″ No, not rude at all
9 3434172894 Once a year of less 5′ 6″ Yes, very rude
10 3434165659 Once a month of less 6′ 0″ No, not rude at all
Eye Color Number of Students
Brown 14
Green 3
Blue 6
Hazel 1
Question Does it have an exact answer? Does it anticipate variability? Is it a statistical question?
Do highways or roads that are not highways tend to see more traffic?  

 
How many automobile accidents in the United States were attributed to distracted drivers in 2020?
Do younger people tend to get more speeding tickets than older people?
What percentage of states allows right turns on red lights?
Which state has the most registered vehicles?
Are people who live in Southern states more likely to drive SUVs?  

 

  

 

A man using his phone while driving

state num_drivers perc_speeding perc_alcohol perc_not_distracted perc_no_previous insurance_premiums losses
1 Alabama 18.8 39 30 96 80 784.55 145.08
2 Alaska 18.1 41 25 90 94 1053.48 133.93
3 Arizona 18.6 35 28 84 96 899.47 110.35
4 Arkansas 22.4 18 26 94 95 827.34 142.39
5 California 12.0 35 28 91 89 878.41 165.63
6 Colorado 13.6 37 28 79 95 835.50 139.91
7 Connecticut 10.8 46 36 87 82 1068.73 167.02
8 Delaware 16.2 38 30 87 99 1137.87 151.48
9 District of Columbia 5.9 34 27 100 100 1273.89 136.05
10 Florida 17.9 21 29 92 94 1160.13 144.18
11 Georgia 15.6 19 25 95 93 913.15 142.80
12 Hawaii 17.5 54 41 82 87 861.18 120.92
13 Idaho 15.3 36 29 85 98 641.96 82.75
14 Illinois 12.8 36 34 94 96 803.11 139.15
15 Indiana 14.5 25 29 95 95 720.46 108.92
16 Iowa 15.7 17 25 97 87 649.06 114.47
17 Kansas 17.8 27 24 77 85 780.45 133.80
18 Kentucky 21.4 19 23 78 76 872.51 137.13
19 Louisiana 20.5 35 33 73 98 1281.55 194.78
20 Maine 15.1 38 30 87 84 661.88 96.57
Skill or Concept: I can . . . Rating from 1 to 5
Work in a group during class to discuss and solve math problems.
Make time in my schedule to participate in a group outside of class to discuss and solve math problems.
Be a productive member of an out-of-class study group.
Reduced Fraction Decimal Percentage
0.75 = 75%
Prefer to study
at the library		 Prefer to study
elsewhere		 Total
Live on campus
Live off campus
Total

Five people gathered around a table with open books on it.

Glossary 1C

simplified fraction
a fraction with all the common factors removed from the numerator and denominator, also called a reduced fraction.
categorical variable
a variable that places an individual into one of several groups.
quantitative variable
a variable that takes numerical values that can be used in arithmetic.
observational units
the individuals about which a dataset has information.
discrete variable
a variable that takes a fixed set of possible values, and it is not possible to get any value in between.
continuous variable
a variable that includes an infinite number of possible values.
statistical investigative question
a question that can be used as the starting point for an investigation that involves data collection and data analysis.
survey question
a question answered with a single numerical value.

 

Glossary 1D

vary
differ.
data dictionary
the format for displaying and describing the variables in a dataset.

 

Glossary 1E

study group
a group of people joining in the study of a particular topic and usually meeting at scheduled intervals to discuss individual observations, reading, and research.