Aussie Maths & Science Teachers: Save your time with SmarterEd
A local soccer club is surveying its players.
The survey aims to be representative of the genders in the club.
There are three times as many boys as girls in the club.
Which of the following samples would get the most representative results?
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all the boys |
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4 boys and 4 girls |
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4 boys and 12 girls |
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4 girls and 12 boys |
`text(4 girls and 12 boys)`
`text(4 girls and 12 boys because a representative sample)`
`text(should have the same gender ratio as the players.)`
Gavin is comparing the average daily rainfall in the towns of Warren and Oxley in April.
What method below is the most valid?
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Ask 20 residents in each town how much rain they received each day in April. |
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Research the total rainfall each town received over the past year and divide by 12. |
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Research the rainfall each town received each day for the first week in April. |
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Research the total rainfall each town received in April and divide by 30. |
`text(Research the total rainfall each town)`
`text(received in April and divide by 30.)`
`text(Research the total rainfall each town)`
`text(received in April and divide by 30.)`