Types of Data

Question 1

what are quantitative variables / quantatitive data?

Answer 1

variables or data associated with numerical observation

Question 2

example of quantitative variable / data

Answer 2

shoe size

Question 3

what are qualitative variables / data?

Answer 3

variables or data associated with non-numerical observations

Question 4

example of qualitative variable / data?

Answer 4

hair colour

Question 5

what is a continuous variable?

Answer 5

a variable that can take any value ina. given rangge

Question 6

example of a continuous variable?

Answer 6

time

2 seconds, 2.01 second

Question 7

what is a discrete variable?

Answer 7

a variable that can only take specific values in a given range

Question 8

example of a discrete variable?

Answer 8

number of girls in family - can’t have 2.65 girls

Question 9

what are classes?

Answer 9

when data is presented in a grouped frequency table, the specific data values are not shown

Question 10

what do class boundaries tell you?

Answer 10

the maximum and minimum values that belong in each class

Question 11

what is the midpoint?

Answer 11

the average of the class boundaries

Question 12

what is the class width?

Answer 12

the difference between the upper and lower class boundaries