1.4 Cumulative Frequency Flashcards
1
Q
What are percentiles and how to find them?
A
They are the measures that divide a ranked dataset into 100 equal parts. They indicate the percentage of observations a value is above.
2
Q
What does a cumulative frequency graph show?
A
Shows the total number of values that fall below the upper boundary of each variable
3
Q
What does a cumulative Relative Frequency Graph (Ogive Graph) show and how to make one?
A
Are for percentiles and show what percent of data is below a certain value.
4
Q
Making a Ogive Graph Example
A
5
Q
What would happen to the shape of the distribution if you add the same number to an observation vs multiplying?
A
6
Q
What are the three ways a bell-shaped curve can look like?
A
