Answer:
See Explanation
Step-by-step explanation:
The question is incomplete; So, I will solve making assumptions
Required
Number of times to land on U
First, calculate the theoretical probability of U
The expected number (E) of time to land on U is then calculated as:
Approximate
<em>8 times</em>
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<em>Follow the above steps, and you will arrive at your answer</em>
There are 12 possible outcomes.....three of these will be a "7" ...so...
A "7" should occur 1/4 of the time
If each player pays 20p to play.....the school will take in 120 * 20 = 2400p
However.......1/4 of the players should win = 30 players.....and each lollipop costs 30p.....so......the school should spend 30 * 30 = 900p for the prizes
So......the school should raise 2400 - 900 = 1500p if 120 people play the game
Answer:
20 maybe
Step-by-step explanation:
