FORMULAS
What is Slope-Intercept Form?
y = mx + b
Define Factorial
A number multiplied by every number after it, back to 1.
What is the theoretical probability of rolling a 2 on a six sided dice?
1/6 = 16.6%
What is the mode in the following set of data?
{2, 7, 21, 13, 11, 3, 22, 18, 7, 11, 34, 5, 21, 19, 7}
7
How do you get rid of something on the bottom of a fraction?
Multiply by the reciprocal
What is the Pythagorean Theorem?
a^2 + b^2 = c^2
Define a Simple Random Sample
On a fair coin, what is the Probability you Flip heads exactly 3 times in a row?
1/8 = 12.5%
What is the Median of the following set of numbers?
{2, 7, 19, 24, 29, 31, 31, 43}
26.5
Give me an example of a stratified random sample.
Something divided into groups first.
What is the formula for finding the mean?
Mean = Sum of parts / amount of parts
Define Hypotenuse
The Longest side of a triangle.
Find P(8, 2)
56
Find the Mean:
{26, 21, 14, 27, 14, 23, 32}
22.42
What is the difference between Biased and Unbiased
Affecting someones opinion or not
What is the formula for a permutation?
P(n, r) = n! / (n-r)!
When is Mr. Fish's Kid Due. Month & Day!
Dec. 12
Find C(7, 5)
21
What measure of center would not be the best to use in the following set and why?
{45, 46, 47, 47, 49, 51, 52, 54, 55, 55, 56, 58, 94}
Mean, there is an outlier that will skew the data.
Give me and example of a sample and population.
What is the formula standard deviation?
take the mean, subtract each number from the mean and square it, Sum all those numbers, divide by n, and take the square root.
Name 4 different measures of center.
Mean, Median, Mode, and Standard Deviation.
There are 3 red marbles, 4 blue marbles, 2 green marbles, and 1 orange marble in a bag. What is the probability you draw a blue marble first, and the a green marble without replacement?
4/10 * 2/ 9 = 8/90 = 8.8%
What does the Standard Deviation tell you?
Average distance between each point and the mean
What process would you use to solve the following system of equations?
2x + 3y = 7
-3y + 4x = 9
Elimination with the y's