S1 - representation of data

Question 1

stem and leaf diagram

Answer 1

key worth marks

Question 2

outlier

Answer 2

is an extreme value that lies outside the overall pattern of the data. an outlier is any value, which is greater than the upper quartile + 1.5 x interquartile range or less than the upper quartile - 1.5 x interquartile range

Question 3

box plot

Answer 3

Question 4

histogram

Answer 4

gives a good picture of how data are distributed. it enables you to see a rough location, the general shape pf the shape of that data an how spread out the data are.