Counting strategies
The product of all natural numbers n to 1
Factorials
Average of a sample (add them up and divide by n)
Mean
Skewed right, Skewed left, And symmetric
A value that shows how many standard deviations a data value is from the mean
Z- score
Simplify i^15
-i
An arrangement or line up of objects in which order matters
permutations
The middle number (must be in order)
Median
The area under the curve represents percentage, with the total area equal to __
1
When the Z-sore is positive, the data value is __ the mean
Above
Write log3 9=2 in exponential form
3^2 =9
A group of objects in which order doesn't matter
Combinations
Data that is spread out
Lower standard deviation
approximately __% of the data falls within one standard deviation of the mean.
68
When the Z-sore is negative, the data value is __ the mean
Below
Simplify 5^-2
1/25 or (1/5^2)
n!/(n-r)!
nPr Permutation formula
Data that is clustered
Higher standard deviation
approximately __% of the data falls within two standard deviation of the mean.
95
Z=x-M/standard deviation
Z score formula
Name the Vertex of f(x)=1/5|x-7|
(7,0)
nCr combination formula
Mean median and mode(s) of this sample
{58,53,59,51,46,35,51,58,60}
Mean-52.3 Median - 53 Modes - 51,58
approximately __% of the data falls within three standard deviation of the mean.
99.7
The mean of total miles ran last week by each member on the track team was 4 with a total standard deviation of 1.2. If clays z-score was 2.5, how many miles did her run
7 mile
Can you simplify the radical and if so what is it?
3Sqrt -24x^9 y^14
-2x^3 y^4 3sqrt 3y^2