Probability "Exactly one"

rzpandi

New member
Joined
Nov 7, 2022
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Hi All,

I am new to the forum. I am currently trying to help a friends daughter with some math homework. One area she is having trouble with is probability.

I am not the best at probability and I have been trying to brush up on my basics.

Could someone give me a hand with working out the answer to Q7C (i) and C(ii)?

The answers are shown below too but I am unable to work out how to get the answers for the above two mentioned questions.

Any help is much appreciated.

Probability.PNG
 
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