2 years ago

Can someone help me? I don’t have much time.

1 answer:

dem82 [27]2 years ago

3 0

I'm pretty sure it's D and E...but if I'm wrong sorry.

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kotegsom [21]

I’m personally not to good at adding fractions so I turned 1/10 into 0.1

Then I divided 268.4 by .1 and got 2,674.

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3 years ago

Tju [1.3M]

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2 years ago

natali 33 [55]

0, (4) = 4/9 L circle = 2πR L circle = 2 · π · 4/9 L circle = 8π / 9 cm
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2 years ago

Lera25 [3.4K]

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Step-by-step explanation:

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3 years ago

cluponka [151]

Answer: (D) 16%

Step-by-step explanation:

Binomial probability formula :-

$P(x)=^nC_xp^x(1-p)^n-x$ , where n is the sample size , p is population proportion and P(x) is the probability of getting success in x trial.

Given : The proportion of students in College are near-sighted : p= 0.28

Sample size : n= 20

Then, the the probability that in a randomly chosen group of 20 College students, exactly 4 are near-sighted is given by :_

$P(x=4)=^{20}C_4(0.28)^4(1-0.28)^{20-4}\\\\=\dfrac{20!}{4!16!}(0.28)^4(0.72)^{16}\\\\=0.155326604912\approx0.16\%$

Hence, the probability that in a randomly chosen group of 20 College students, exactly 4 are near-sighted is closest to 16%.

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3 years ago