Page 13 - Math SL HB Sem 3

6.40: GROUPED DATA

+6.41 : Frequency Tabtes

i.e, Table : Frequency Distribution of Nicotine lrvels of Smokers-

Nicotine Frequency

0-99 I I

100 - I99 2 I

200 299 I4

300 199 I

400 - 499 2

Fat hfr
c)oss :
Lower class limit =

Upper class limit .. .

Class boundaries .

Class mark

Class interval

For grouped data, to find the standard deviation,o

Height of Number of I
students (cm) students Calculator-T: Calculator-C:
scoR FREQ List 1 List 2
157.5 6
155< h< 160 6 157.5 6
162.5 10 162.5 10
165sh<170 7
U1-Var Stats )1-Vaiable
175<[<180 1, Read off the value of Read off the value of
ox xon
ft >185 0 i

l1-