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Butoxors [25]
3 years ago
13

Puppy A weighs 6 kilograms, which is about 30% of its adult weight.

Mathematics
1 answer:
ziro4ka [17]3 years ago
3 0

Answer:

a.

<u>Required equation is</u>

  • 6 kg is 30% of w
  • 0.3w = 6

b.

<u>Solve the equation</u>

  • w = 6/0.3
  • w = 20 kg
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3. The Food Marketing Institute shows that 17% of households spend more than $100 per week on groceries. Assume the population p
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Answer:

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A) p ( proportion of population that spends more than $100 per week) = 0.17

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the sample proportion of p = 0.17

standard error of p = \sqrt{\frac{p(1-p)}{n} } = 0.013281

the sampling distribution of p can be calculated/approximated with

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= p (0.17 - 0.02 ≤ P ≤ 0.17 + 0.02 ) = p( 0.15 ≤ P ≤ 0.19)

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therefore the required probability will be

p( -1.5 ≤ z ≤ 1.5 ) = p(z ≤ 1.51 ) - p(z ≤ -1.51 )

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