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3 November, 08:00

There are 3000 people at a concert you survey a random sample of 200 people and find that for 35 of them this is their first concert they have ever attended estimate how many total people are attending their first concert that night

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  1. 3 November, 08:18
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    Ok so

    ratio

    35/200=x/3000

    7/40=x/3000

    multiply both sides by 12000

    2100=4x

    divide both sides by 4

    525=x

    aprox 525 people
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