Barry has one of each coin in the euro currency in his pocket - Junior Cycle Mathematics - Question 2 - 2018
Question 2
Barry has one of each coin in the euro currency in his pocket.
He puts his hand in his pocket and picks one coin at random.
(a) Fill in the table below to show the ... show full transcript
Worked Solution & Example Answer:Barry has one of each coin in the euro currency in his pocket - Junior Cycle Mathematics - Question 2 - 2018
Step 1
P Barry picks a €2 coin.
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Answer
There is 1 €2 coin out of a total of 8 coins.
Therefore, the probability is:
P(P)=81=0.125.
Step 2
S Barry picks a coin worth less than 50 cent.
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Answer
The coins worth less than 50 cent are the 1 cent, 2 cent, and 5 cent coins, totaling 3 coins.
So, the probability is:
P(S)=83=0.625.
Step 3
T Barry picks a €3 coin.
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Answer
Since there are no €3 coins in Barry's pocket, the probability is:
P(T)=80=0.
Step 4
Write each of the letters P, S, and T in the correct place on the probability scale.
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Answer
On the probability scale:
P would be at 0.125
S would be at 0.625
T would be at 0.
Step 5
Which coins does Barry use?
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Answer
To pay for a €1.75 ticket, Barry can use the following coins:
