box plots, means and SD

Question 1

five number summary and box plots

Answer 1

minimum, Q1, median (M), Q3, maximum (makes boxplot)

Question 2

observations made more than 1.5 x IQR outside the central box are plotted as?

Answer 2

outliers

Question 3

excel

Answer 3

use quartile function (Q0 for min and Q4 for max)

can’t make a boxplot

Question 4

sample mean or x bar

Answer 4

add all values together and divide by umber of values

Question 5

variation or s squared

Answer 5

(value - mean) squared + (value - mean) divide all by n-1

Question 6

sample standard variation (s)

Answer 6

squareroot variance