Distributions

Question 1

What 4 things are used to describe a distribution?

Answer 1

Shape, center, spread, outliers

Question 2

What describes the shape of a distribution?

Answer 2

symmetric, unimodel, bimodel, uniform, skewed right or left

Question 3

What describes the center of a distribution?

Answer 3

median, mean

Question 4

What describes the spread of a distribution?

Answer 4

range, sandard deviation, IQR, five number summary

Question 5

What describes outliers?

Answer 5

data outside of the normal

Question 6

describe a symmetric distribution

Answer 6

the graph is similar to each other on both left and right

Question 7

describe a unimodel distribution

Answer 7

one bar is taller than all the rest

Question 8

describe a bimodel distribution

Answer 8

two bars are taller than all the rest

Question 9

describe a uniform distribution

Answer 9

all bars are the same height

Question 10

describe a skewed left distribution

Answer 10

graph tails to the left

Question 11

describe a skewed right distribution

Answer 11

graph tails to the right

Question 12

range = ?

Answer 12

largest # - smallest #

Question 13

IQR = ?

Answer 13

Q3 - Q1

Question 14

mean

Answer 14

x bar = sample

mu = population

Question 15

standard deviation

Answer 15

average distance between mean and data oint

s = sample, sigma = population

Question 16

five number summary

Answer 16

min, Q1, median, Q3, max

Question 17

outlier above

Answer 17

1.5(IQR)+Q3

Question 18

outliers below

Answer 18

Q1-(1.5(IQR))