Variables and Their Measurement and Lab 1

Question 1

What’s the difference b/e a bar graph/chart and a histogram?

Answer 1

A Bar Graph or Bar Chart displays the data about the exterior condition of each housing attribute.

A Grouped Frequency Distribution or Histogram summarizes and displays surveyed houses’ “Overall exterior housing qualities as a percentage above or below normal”.

Question 2

What is A Data Distribution?

Answer 2

When data are assembled and put together in a list or a graphical display.

Question 3

In our case, what is the difference between “normal” PHQ and PHQ within the “normal range”?

Answer 3

Normal = 0% on the button

Normal Range = -10% to 10%

Question 4

Our favourite (dependent) variable is the summary measure of a house’s _________.

Answer 4

“Overall exterior housing quality as a percentage above or below normal”.

Question 5

What are central tendencies? Provide examples.

Answer 5

A central or typical value for a probability distribution (e.g., mean, median, mode).