Math - Statistics

Question 1

How would you calaculate mean, median, and mode?

Answer 1

Mean = average
Median = number in middle; organize data numerically and find number in the middle; if two numbres in middle, find average of those two numbers
Mode: number seen most often

Question 2

How would you calaculate range?

Answer 2

take the largest number in the data set and subtract the smallest value

Question 3

A data point that does NOT fit the pattern is a(n) ______

Answer 3

outlier

Question 4

Know how a unimodal, bimodal, multimodal, and uniform graph look like

Answer 4

Unimodal : one peak/bell shaped; normal distribution
Bimodial: two peaks
Multimodal = many peaks
Uniform = no obvious peaks

Question 5

Know how a positive and negative skewed distribution appears as. Know where mode/mean/median can be found.

Answer 5

Positive skewed (Right skewed): mode at peak, median slightly right, then mean farther right

Negative skewed (Left skewed): mode at peak, media slightly left, then mean farther left