8.6 Few people use below 50 MB or above 125 MB per month and most people use between 50 and 125 MB per month. The most common (modal) category is 75 − 100 MB per month and the least common category is 150 MB and greater per month.


8.7 They can sell packages of data of around 75 − 100 MB per month.


Question 9 9.1.1


(2) (1)


[10]


9.1.2 ii) P(strawberry and sugar cone) = 4 9.1.2 iii) P(fudge, tub, caramel sauce) = 1


9.1.2 i) P(chocolate) = 12


___ 48 = 1


__ 4


___ 48


There are 48 possible combinations.


___ 48 = 1


___ 12


(2) (1) (1)


(1)


354 Section 4: Teaching Mathematics


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