1. blue TALL 20% Relative Error 1% Relative Error $10.99 5 lbs.
Population: 100 people voted today.
Sample: We asked 10 people who they voted for.
Sample Statistic: 5 people told us they voted for A.
Parameter: 50% of the population voted for A today.
Qualitative
(quality)
blue
TALL
Honda Civic
5 stars
Quantitative
(quantity)
$10.99
5 lbs.
26 inches
5,000 miles
Difference: 1 foot
Difference: 1 foot
Actual: 79 feet
Actual: 5 feet
Measured: 80 feet
Measured: 6 feet

2. Comparison statement
Reference Value
Compared Value
Calculation
Janice's annual income is ___% of Paul's
Janice's annual income
$75,000
Paul's annual income
$50,000
(75,000/50,000)*100 = 150%
Paul's annual income is ___% of Janice's
(50,000/75,000)*100 = 67%
Janice makes ___% more in a year than Paul
Absolute difference between salaries
$25,000
(25,000/50,000)*100 = 50%
Paul makes ___% less in a year than Janice
(25,000/75,000)*100 = 33%
A middle-income ($38k-$64k) couple will spend $165,630 for food, shelter and other basic necessities to raise a child born last year to age 17.
A middle-income ($38k-$64k) couple will spend $165,630 for food, shelter and other basic necessities to raise a child born last year to age 17.

3. BAR GRAPH PIE CHART HISTOGRAM PARETO CHART GRAPH16 12
Grade
Number of Students 8 4
500
450
400
350
300
Number of Students
Grade
PARETO CHART
GRAPH
Title
Number of Students
Number of Students
Legend
Grade
Vertical Axis Label
Grade
Horizontal Axis Label

4. Percent
Year
Percent
Thousands of dollars
Year
Year
Percent
20 years ago 140 calories
Today
350 calories
Year

5. Mean
Median
Mode
Actual values in the data set
Values are in numerical order
Values are in numerical order
0, 0, 0, 0, 1, 3, 3, 5, 6
0, 0, 0, 0, 1, 3, 3, 5, 6 9
Number of values in the data set
Middle value
Most common value 18 9 2
This is the mean
Weighted Mean
Weight
Weight
Weight
Value
Value
Value
(96 * 25) + (95 * 25) + (84 * 50)
Sum of all the weights
89.5
This is the weighted mean

6. Values are in numerical order
Range
Five Number Summary
5 Number Summary 1
Low Value 2
Lower Quartile 3
Median 4
Upper Quartile 5
High Value
Values are in numerical order
Median
20, 21, 21, 21, 22, 23, 24, 25, 26, 28
Lower Quartile
Upper Quartile
Low value
High value
Lowest value
Highest value
[20, 21, 21, 21, 22,] 23, [23, 24, 25, 25, 28]
Range
28-20
Range 8
Batting Average
# of balls hit
# of chances to hit
Justice
104 balls hit
411 chances to hit
Jeter
12 balls hit
48 chances to hit

7. Justice .253 Jeter .250 Batting Average # of balls hit
# of chances to hit
Justice
104 balls hit
411 chances to hit
Jeter
12 balls hit
48 chances to hit
10,000 breast tumors are detected
1% breast tumors are malignant
# of malignant tumors = 10,000 * 1% = 100
# of benign tumors = 10,000 * 1% = 9,900
85% screen tests are accurate
Test results of 100 women who actually have malignant tumors
Test results of 9,900 women who actually have benign tumors
Total # of positive test results = ,485 = 1, 570
% accurate positive results = 85 / 1, 570 = = 5%
ACCURATE (POSITIVE) RESULTS
# Test Positive = 100 * (0.85) = 85
FALSE POSITIVE
# Test Positive = 9,900 * (0.85) = 1,485
FALSE NEGATIVE
# Test Positive = 100 * (0.15) = 15
ACCURATE (NEGATIVE) RESULTS
# Test Positive = 9,900 * (0.15) = 8,415

8. % accurate positive results = 85 / 1, 570 = 0.05414 = 5%
Batting Average
# of balls hit
# of chances to hit
Justice
104 balls hit
411 chances to hit
Jeter
12 balls hit
48 chances to hit
10,000 breast tumors are detected
1% breast tumors are malignant
# of malignant tumors = 10,000 * 1% = 100
# of benign tumors = 10,000 * 1% = 9,900
85% screen tests are accurate
Test results of 100 women who have malignant tumors
Test results of 9,900 women who have benign tumors
TOTAL
Positive Results
ACCURATE POSITIVE
100 * 85% = 85
FALSE POSITIVE
9,900 * 15% = 1,485
1,570
Negative Results
FALSE NEGATIVE
100 * 15% = 15
ACCURATE NEGATIVE
9,900 * 85% = 8,415
8,430
100
9,900
10,000
% accurate positive results = 85 / 1, 570 = = 5%

9. Number of Standard deviations from average value
Probability = 68%
Probability = 0.3%
400
500
600
700
1200
1700
Number of Standard deviations from average value
Probability of results by range for normal distribution 1
68% 2
95% 3
99.7%