Probability
Notation
Correlation
Random
100

On a six sided die, with numbers 1-6, what is the probability of rolling a 4?

1/6

100

In your own words, what does this mean? 

42C3

Out of 42 options someone is trying to make a smaller group of 3 where ORDER DOES NOT MATTER!

100

If a scatterplot has an r-value of 0.9, how would you describe the strength of the two variables?

Strong and positive relationship between the two variables. 

100

What state did Ms. Redway grow up in?

New Hampshire

200

Three coins are tossed up in the air, one at a time. What is the probability that two of them will land heads up and one will land tails up? 

(1/2)(1/2)(1/2) = 1/8

200

In your own words, explain what this means: 

P (raining | it is April)

Probability that it is raining given that it is April. 

Equation: p(raining and april)/P(april)

200

Draw a scatterplot that would have a correlation of -1.0

A straight line through the points going down. 

200

What country hosted the 2008 Olympic games? 

Beijing

300

There are 6 blue marbles, 3 red marbles, and 5 yellow marbles in a bag. What is the probability of selecting a red marble and then a blue marble without replacement?

(3/14)*(6/13)=18/182 = 0.0989

300

Explain what this means in your own words: 

P(6 feet tall ∩ 18 years old)

Find the probability that they are 6 feet tall and 18 years old

300

(True/False): If an event has a correlation of 1, it means that one variable can predict the other one happening. 

FALSE! Correlation does not equal causation!
300

When was the high school founded?

2015

400

A dice is rolled where odd numbers are red and even numbers are blue. What is the probability that you roll a red number or a 4?

(3/6)+(1/6)-(0/6) = 4/6 = 0.6667 

400

Describe what this means in your own words:

P(dog ∪ brown)

Find the probability that it is a dog and brown

400

How does an outlier impact correlation?

An outlier makes correlation weaker, or lowers the correlation coefficient, r. 

400

What does the ! mean in math? 

Factorial - multiply by each other to get to one (Example: 5! = 5x4x3x2x1)

500

You are playing a game of poker, and you pull a three of a kind (three of the same number). What is the probability of this happening? 

(4/52)*(3/52)*(2/52) = 24/140,608 = 0.00017069

500

Describe in your own words what is happening.

P(bluec)

What is the probability that it is not blue?
500
True or false, if two variables have a negative relationship that means that as the x-variable increases the y-value decreases 

True! 

500

What is a group of owls called?

Parliament

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