PROBABILTIY
A jar contains 12 marbles: 4 red, 3 blue, 3 green, and 2 yellow.
If you draw one marble, what is the probability of getting a blue marble?
1 in 4, 1/4, or 25%
The average annual cost of living in Texas is $55,000, in Florida is $60,000, and in Colorado is $68,000.
Which state would have the highest minimum wage based on this?
Colorado
Pretend it’s the year 2045 and you are on the reelection staff of President Jordan Smith. Analyze these polls:
Poll 1: Oct 2, Sample size 2,500, Result 52%
Poll 2: Sep 18, Sample size 1,200, Result 49%
Poll 3: Jul 6, Sample size 600, Result 56%
Poll 4: Oct 8, Sample size 950, Result 58%
Poll 5: Oct 11, Sample size 1,800, Result 47%
Which polls are most reliable and which are least reliable?
Least: Poll 3, Most: Poll 1 and Poll 5
In Fall 2022, 12 million undergraduates attended full-time. Of those:
- 9,300,000 under 25
- 1,500,000 ages 25–34
- 1,200,000 age 35+
Is the ratio of students aged 25-24 to all students an example of a Part-to-Part ratio or a Part-to-Whole Ratio?
Part-to-Whole
Consider the graph I am going to show,
What is this person's lowest and highest priority?
Lowest- Debt, Highest- Housing
A jar contains 12 marbles: 4 red, 3 blue, 3 green, and 2 yellow.
If you roll a fair die and draw a marble, what is the probability of rolling a “3” and drawing a red marble?
1 in 18, 1/18, 5.6%
The average annual cost of living in Texas is $55,000, in Florida is $60,000, and in Colorado is $68,000.
What is the ratio to determine the how much a dollar is worth in Florida in comparison to $1 in Texas?
60,000/55,000
Poll 1: Oct 2, 50%, Weight 0.35
Poll 2: Sep 18, 48%, Weight 0.10
Poll 3: Jul 6, 62%, Weight 0.05
Poll 4: Oct 8, 43%, Weight 0.15
Poll 5: Oct 11, 55%, Weight 0.35
Calculate the weighted average, rounded to the nearest tenth.
51.1%
In Fall 2022, 12 million undergraduates attended full-time. Of those:
- 9,300,000 under 25
- 1,500,000 ages 25–34
- 1,200,000 age 35+
Is the ratio of students aged 25-34 to students 35 and older an example of a Part-to-Whole or Part-to-Part ratio?
Part-to-Part
Consider the pie chart I am about to show you.
If the budget is $80,000 a year. How much was spent on insurance?
$7200
A jar contains 12 marbles: 4 red, 3 blue, 3 green, and 2 yellow.
If you draw a yellow marble first and do not replace it, what is the probability of drawing green on the second draw?
3 in 11, 3/11, or 27.3%
The average annual cost of living in Texas is $55,000, in Florida is $60,000, and in Colorado is $68,000.
How much is a dollar in Colorado worth in Florida?
$0.88
Grades are computed using weighted averages. Your scores are:
Homework Avg – 15% – 85
Quiz Avg – 45% – 78
Midterm Exam – 20% – 90
Final Exam – 20% – 72
How many points were gained from the midterm exam?
18
In Fall 2022, 12 million undergraduates attended full-time. Of those:
- 9,300,000 under 25
- 1,500,000 ages 25–34
- 1,200,000 age 35+
What is the ratio of students aged under 25 to all students?
77.5%
Average tuition (inflation-adjusted):
2006–07: Four-Year $7,200, Two-Year $2,600
2014–15: Four-Year $9,400, Two-Year $3,350
What is the absolute change in four-year tuition from 2006–07 to 2014–15?
$2,200
A jar contains 12 marbles: 4 red, 3 blue, 3 green, and 2 yellow.
What is the probability that you draw a yellow first and then a red second, if you do not replace the first marble?
8 in 132, 8/132, 6.1%
The average annual cost of living in Texas is $55,000, in Florida is $60,000, and in Colorado is $68,000.
If you earn $57,000 in Texas and move to Colorado, what would be your equivalent salary there? Round to the nearest whole dollar
$70,452
Grades are computed using weighted averages. Your scores are:
Homework Avg – 15% – 85
Quiz Avg – 45% – 78
Midterm Exam – 20% – 90
Final Exam – 20% – 72
What is your total course grade?
80%
In Fall 2022, 12 million undergraduates attended full-time. Of those:
- 9,300,000 under 25
- 1,500,000 ages 25–34
- 1,200,000 age 35+
What is the ratio of students aged under 25 to ages 25-34?
12.5%
Average tuition (inflation-adjusted):
2006–07: Four-Year $7,200, Two-Year $2,600
2014–15: Four-Year $9,400, Two-Year $3,350
What is the relative change, rounded to the nearest whole percent?
31%