Formulas
p = f/n
What is proportion?
10%. Which set of scores does this percentage match?
X | f
5 | 3
4 | 2
3 | 4
2 | 1
1 | 0
What is X = 2?
A graph with spaces between bars (draw one)
What is a bar graph?
Definition of NOIR
What is nominal, ordinal, interval, and ratio?
The suggested sizes for interval width
2, 5, 10
p(100) = f/n(100)
What is percentage?
A graph with no spaces between bars (draw one)
What is a histogram?
The scale for the data "1st place, 2nd place, 3rd place"
What is ordinal?
The real limits for "You ran something in 5 seconds"
cf/N(100%)
What is cumulative percentages?
Cumulative frequency of 14:
X | f
5 | 1
4 | 5
3 | 8
2 | 4
1 | 2
What is X = 3?
A graph with a skew towards the right side (draw one)
What is a negative skew?
The scale for the data "Years"
What is interval?
Grouped Frequency Distribution interval width for 15-19, 20-24, 25-29, 30-34.
What is 5?
∑f = N
What is the total number of individuals?
Find the percentage:
X | f
5 | 6
4 | 7
3 | 2
2 | 3
1 | 6
argue !
A graph for a population distribution (draw one)
What is a normal distribution?
The scale for the data
"Pounds"
What is ratio?
Find the intervals of the following: Low X = 33. High X = 67
What is 30-34, 35-39, 40-44, 45-49, 50-54, 55-59, 60-64, 65-69
highest - lowest + 1
What is rows?
Find the c% for the following frequencies:
X | f
5 | 32
4 | 84
3 | 26
2 | 64
1 | 18
argue about whether they're right!
Each value of this display corresponds to a class interval (draw one)
What is a stem and leaf plot?
What is Ratio, Interval, Interval?
Find the intervals of the following: Low X = 10, High X = 65.
debate !