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viktelen [127]
3 years ago
8

in the morning a farm worker packed 3 pints of strawberriesevery 4 minutes.in the afternoon she packed 2 pints of strawberries e

very 3 minutes,. what was the difference between her morning and afternoon packing rates,in pints per hour?
Mathematics
1 answer:
nevsk [136]3 years ago
7 0
In the morning
 (3/4) (strawberries / minutes) * (60/1) (minutes / hours) = 45 (strawberries / hours)
 in the afternoon
 (2/3) (strawberries / minutes) * (60/1) (minutes / hours) = (40 strawberries / hours)
 the difference between your morning and afternoon packing rates, in pints per hour is
 45-40 = 5 (strawberries / hours)
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Answer:

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Step-by-step explanation:

Given -

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Let X be no of defects in a car

P(X=3) = .07 , P(X=2) = .11 , P(X=3) = .21

P(X=0 ) = 1 - .07 - .11 - .21 = 0.61

The expected number of appearance defects in a new car =

E(X) = \nu = = \sum X P(X) =3\times 0.07 + 2\times0.11 + 3\times0.21 + 0\times0.61 = 0.64

\sigma^{2}  = variation of E(X) = \sum (X - \nu) ^{2}P(X) = (3 - 0.64) ^{2}\times0.07 + (2 - 0.64) ^{2}\times0.11 + (1 - 0.64) ^{2}\times0.21 + (0 - 0.64) ^{2}\times0.61

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Step-by-step explanation:

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Now,

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Therefore,the area of the shaded region is approximately,6.283....

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Elenna [48]

Answer:

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