skewness and kurtosis

Question 1

skewness(2 types)

Answer 1

right positive skew-
Left negative skew

Question 2

what does skewness indicate

Answer 2

distribution= not normal as normal distribution has 0 skew.
(skew is neg or pos)

Question 3

how to calc skewness

Answer 3

normal dis has similar medium and mean
skewness 3times mean - medium /SD

Question 4

when is it skew

Answer 4

-1 and 1= highly skew
-1 - -0.5=moderate
-0.5 and 0,5 is symertical

Question 5

kurtosis (how high)

Answer 5

positive= peaked long and thin=LEP
negative= relatively flat( too many cases) = PLAT
normal dis= MOSK