Ali has RM73. A shop selling shoes gives Ali a choice by offering three pairs of shoes priced below RM50 a pair, four pairs of shoes priced between RM50 to RM70 a pair and five pairs of shoes priced at RM70 a pair. If is an event where Ali buys a pair of shoes, express the complement of an event in
(b) set notations
is an event where Ali buys a pair of shoes.
(a) The complement of an event in words
is an event where Ali do not buy any pair of shoes. Because Ali can't afford to buy more than one shoes, so it's one or nothing.
(b) The complement of an event in set notations
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