3.1 mean and median

Question 1

notations

Answer 1

sample is x with a line on top and population is the greek “mu” symbol

Question 2

finding median using calculator

Answer 2

1.enter L1 2.press stat and highlight calc menu 3.select 1-vars stats, L1 and then enter

Question 3

median is resistant mean is not

Answer 3

resistant is if the value is not affected much by extreme values (small or large) in a data set

Question 4

symmetric data

Answer 4

mean and median are equal

Question 5

skewed to the right (taller on the left)

Answer 5

large values are in the right, mean is often more than the median

Question 6

skewed to the left (taller on the right)

Answer 6

mean is less than the median

Question 7

standard deviation

Answer 7

the measure of how spread out the data are; computed a lil different from populations and samples

Question 8

is standard deviation resistant?

Answer 8

nope