Permutations
7P3
210
Average (Add them up then divide the big number)
A value that shows how many standard deviations a data value is from the mean
Z-score
What is the formula used for combinations?
nCn
What are the example shapes of Data distribution called
The 3 Basic Shapes
6*6*6*6*6*6*6*6
1,679,616
The most popular number you may or may not have
What is the Mode?
When the Z-score is positive
It is above the Mean
16C7
11,440
What numbers make up The Empirical Rule?
68%
95%
99.7%
How many different 9-letter arrangements are possible using the letters in the word DISAPPEAR?
90,720
Median
Middle number that has to be arranged in numerical order.
What does the Z-score formula consist of?
X=The data value
m=The mean
o=Standard Deviation
17P2
272
Data Distribution has what 3 basic shapes?
Skewed Right, Skewed Left, and Symmetric
How many different 10-letter arrangements are possible using the letters in the word AUTOMOBILE?
1,814,400
What are the three M´s in Measures of Central Tendency
Mean, Median, and Mode
52-46/2.8
=2.14
Mindy is purchasing songs from an album on itunes. If the album has 14 songs, how many ways can she choose 6?
3,003
Define: Normal Distribution
A symmetrical bell shaped curve defined by the mean and the standard deviation of the data set
The product of all natural numbers from n to 1
What is a factorial?
Find the mean, median, and mode
{21,10,27,24,15,7,19,24,31,15,11,24}
Mean:19
Median:20
Mode(s): 15,24
47-46/2.8
=0.36
Define Combinations
A group of objects in which order does not matter
Bonus (150+ points) : How to calculate the mean, median, and standard deviation on the calculator
Hit Stat, Enter
Edit, Hit Stat CALC once you have the numbers listed
Hit 1-Var Stats, Enter, Enter,
Hit Calculate