On a six sided die, with numbers 1-6, what is the probability of rolling a 4?
1/6
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!
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.
What state did Ms. Redway grow up in?
New Hampshire
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
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)
Draw a scatterplot that would have a correlation of -1.0
A straight line through the points going down.
What country hosted the 2008 Olympic games?
Beijing
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
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
(True/False): If an event has a correlation of 1, it means that one variable can predict the other one happening.
When was the high school founded?
2015
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
Describe what this means in your own words:
P(dog ∪ brown)
Find the probability that it is a dog and brown
How does an outlier impact correlation?
An outlier makes correlation weaker, or lowers the correlation coefficient, r.
What does the ! mean in math?
Factorial - multiply by each other to get to one (Example: 5! = 5x4x3x2x1)
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
Describe in your own words what is happening.
P(bluec)
True!
What is a group of owls called?
Parliament