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3 years ago

6

Yesterday, 20 bakery customers bought muffins and 11 of those customers bought banana muffins. If 100 customers buy muffins tomo

rrow, how many would you expect to buy a banana muffin?

1 answer:

castortr0y [4]3 years ago

7 0

Answer:

55

Step-by-step explanation:

Make a proportion.

11/20=x/100

20*5=100, 11*5=55

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3 years ago

According to a recent survey, 31 percent of the residents of a certain state who are age 25 years or older have a bachelor’s deg

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Answer:

The probability of getting B=40 is $0.11\times 10^{-11}$ which is negligible.

Step-by-step explanation:

Given that 31 percent of the residents of a certain state who are age 25 years or older have a bachelor’s degree.

Assuming the population of the state aged 25 years or more is Bernoulli's population.

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Here, a random sample of 50 residents of the state, age 25 years or older, will be selected.

So, n=50.

Given that variable B represents the number in the sample who have a bachelor’s degree,

We have to find the probability that B will equal 40.

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$=\frac {50!}{40! (50-40)!}(0.31)^{40}(0.69)^{10} \\\\=\frac {50!}{40! \times 10!}(0.31)^{40}(0.69)^{10} \\\\=0.11\times 10^{-11}$

So, the probability of getting B=40 is $0.11\times 10^{-11}$ which is negligible.

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Answer:

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to get 40 ounces of 55% juice

x + 0.1(40-x) = .55(40)

x + 4 - 0.1x = 22

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.09x = 18

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Step-by-step explanation:

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