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A new ice-cream brand is introduced by you to each customer entering the supermarket with Chocolate,...

A new ice-cream brand is introduced by you to each customer entering the supermarket with Chocolate, Vanilla and Strawberry flavours. After each customer tasted the ice-cream, 20% of them like Chocolate flavour, 44% like Vanilla flavour and other like Strawberry flavour. Among those customers like Chocolate flavour, 25% are males. 19% of all customers like Vanilla flavour and they are females. 10% of all customers like Strawberry flavour and they are males. You find the probability that a randomly selected customer at the supermarket is a female or the customer likes Strawberry flavor.

How to get the formula that 0.34+(1-0.5064)-{[1-(0.1/0.34)][0.34]} ?

Math   Statistics-And-Probability   
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Answer #1

Let c, v and s denote the event like a randomly customer will like chocolates, vanilla and strawberry flavour respectively

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