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sergiy2304 [10]
2 years ago
5

A farmer sells 6.6 kilograms of apples and pears at a farmers market.4/5 of this weight is apples,the rest is pears.How many kil

ograms of pears did she sell at the famers market?
Mathematics
1 answer:
Ad libitum [116K]2 years ago
6 0

Answer:

  1.32 kg

Step-by-step explanation:

Given a fraction of the market goods, we can find the remaining fraction by subtracting the given fraction from 1.

The fraction of the goods the farmer sells that is pears will be ...

  (apples +pears) = (apples) +(pears)

  pears = (apples +pears) -(apples)

  pears = 1 - 4/5 = 1/5 . . . . . of the total goods

One-fifth of the goods sold will have a weight of ...

  (1/5) × (6.6 kg) = 1.32 kg

The farmer sold 1.32 kg of pears at the market.

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In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of \alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

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The lower limit of this interval is:

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The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.6 + 1.96\sqrt{\frac{0.6(0.4)}{100}} = 0.7

The 95% confidence interval for the proportion of all scores that are passing is (0.5, 0.7).

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A similar problem is given at brainly.com/question/16807970

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22* \frac{26}{11} = 2*11* \frac{26}{11} =2*26=52&#10;


<span>any answer is correct, my is correct....</span>

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