There are 10 boys and 20 girls in a class.
The class has a test.
The mean mark for all t...
Mathematics, 16.03.2020 23:00 nourmaali
There are 10 boys and 20 girls in a class.
The class has a test.
The mean mark for all the class is 60.
The mean mark for the girls is 54.
Work out the mean mark for the boys.
Answers: 3
Mathematics, 21.06.2019 19:30
Finally, the arena decides to offer advertising space on the jerseys of the arenaβs own amateur volley ball team. the arena wants the probability of being shortlisted to be 0.14. what is this as a percentage and a fraction? what is the probability of not being shortlisted? give your answer as a decimal. those shortlisted are entered into a final game of chance. there are six balls in a bag (2 blue balls, 2 green balls and 2 golden balls). to win, a company needs to take out two golden balls. the first ball is not replaced. what is the probability of any company winning advertising space on their volley ball team jerseys?
Answers: 3
Mathematics, 21.06.2019 20:30
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Answers: 1
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Answers: 2
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