A teacher wants to choose a year 7,8 %26amp; 9 pupil.
She gave each pupil one ticket.
Look at the info....
Year 7 [Red ticket]
Number used:- 1 - 80
Year 8 [Blue ticket]
Number used:- 1 - 75
Year 9 [Yellow ticket]
Number used:- 1 - 90
(a) What is the probability that the winning ticket will be blue?
(b) What is the probability that the winning ticket will show number 39?
(c) The teacher selects the winning ticket at random.
She says...
"The winning ticket is 39".
What is the probability that this winning ticket is blue?
Please help me and answer.
If possible, show working.
Thank You So Much.
No hate comments
Please answer this question. I'm super rubbish on probability.?
Total tickets =245
P(blue) = 75/245 =15/49
P(39) = 3/245
Given that it is "39", P(blue) = 1/3
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