-
What is mode?
The Mode is the value that occurs the most in the set of values.
- Example;
- 2,5,6,7,2,4,9,2
- Mode = 2
-
What is the formula to calculate 25th Percentile?
Pk = (K/100) x n
- P25 = 25/100) x number of values in the set.
- This will give you the LOCATION of the value which rep.'s the 25th Percentile. Always round up. If the number happens to be a whole number, average that number and the next highest to get the location.
-
-
-
What is the Median?
The Median is the value in the direct middle of the data when the data is arranged in order.
-
What is the Midrange and how do you calculate it?
- The Midrange is the value halfway between the highest and the lowest value.
- = Highest value + Lowest Value / 2
-
Range =
The difference between the highest and lowest value.
-
How do you calculate Variance/Variation
Standard Deviation (Sx) squared.
-
How do you calculate Coefficient of Variation (Cv)?
standard deviation (Sx) / Mean (xbar) x100 = ___%
-
Is 'x' the independant or dependant variable?
X is the INDEPENDANT variable. it affects Y, the DEPENDANT variable
-
What is the formula for the Coefficient of Determination?
R (coefficient of correlation) squared
-
D6, the sixth decile = P?
P60
|
|
