Box and Whisker Plt
Categorical or Quantitative
What is your favorite color?
Categorical
What is the min and max?
2, 6, 8, 9, 10
Min: 2
Max: 10
You are taking data on what classes freshman students are taking at SFCC. You ask 100 students in the parking lot at 8am
What is the population?
Freshman SFCC students
How many people were asked?
20
Bar Graph
Categorical or Quantitative
How old are you?
Quantitative
What is the range?
1, 4, 7, 9, 12
12-1 = 11
You are taking data on what classes freshman students are taking at SFCC. You ask 100 students in the parking lot at 8am
What type of sampling method is this?
Convenience sampling
What is the mode?
50-60
Circle Graph
Categorical or Quantitative
How many hour do you watch netflix?
Quantitative
What is the median:
1, 3, 5, 7, 9, 11, 13, 15, 17
9
You are taking data on what classes freshman students are taking at SFCC. You ask 100 students in the parking lot at 8am
Is there a bias in this method? Is so, what?
Yes, you are only asking students in the parking lot at 8am
How many people are 50 or older?
10
Histogram
Categorical or Quantitative
On a scale of 1 to 5, how is your day going?
Quantitative
What is the median?
2, 4, 6, 8, 10, 12, 14, 16
8 and 10
8+10= 18
18/2 = 9
You are taking data on what classes freshman students are taking at SFCC. You ask 100 students in the parking lot at 8am
Categorical or Quantitative?
Categorical
How many people are younger than 40?
6
What is a graph you would use to show Categorical data?
Bar graph
Circle graph
Categorical or Quantitative
What classroom is your math class in?
Categorical
What is the 5 number sumary?
1, 2, 3, 3, 4, 4, 7, 9, 14
Min: 1
Q1: 3
Med: 4
Q3: 7
Max: 14
You are taking data on what classes freshman students are taking at SFCC. You ask 100 students in the parking lot at 8am
How would you change this study to make it more accurate?
Ex:
What percentage of people are 70 or older?
2/20 = .1 = 10%