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anastassius [24]
4 years ago
13

Recent statistics show that 62% of people wash their hands after using the restroom.If you shake hands with three random people,

what is the probability that all of them washed their hands after previously using the restroom?
Mathematics
1 answer:
Sedbober [7]4 years ago
6 0

Answer:

p = 0.62

Step-by-step explanation:

Probability that all three has washed their hands after previously using the restroom = 0.2383 approx. The probability that all of the 3 washed their hands after previously using the restroom is 0.2383. Explanation: It is given that, 62% of people wash their hands after using the restroom that is p = 0.62.

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What is 7/9 divided by 1/3
irakobra [83]

Answer:

\frac{21}{9}

Step-by-step explanation:

\frac{7}{9} (divide)\frac{1}{3} = \frac{7}{9}*\frac{3}{1} = \frac{21}{9}

4 0
3 years ago
A study was being conducted about birth weights of babies at a local hospital and found the average to be 7.6 pounds with a stan
dangina [55]

Answer:

The birth weight associated with the lowest 1% is 4.6 pounds.

Step-by-step explanation:

Let <em>X</em> represent the birth weights of babies.

It is provided that X\sim N(7.6,1.3^{2})

It is also provided that many pre-mature births weights are in the lowest 1% of births.

Let <em>x</em> represent the births weights that are in the lowest 1% of births.

That is, P (X < x) = 0.01.

⇒ P (Z < z) = 0.01

The corresponding <em>z</em>-score is, <em>z</em> = -2.33.

Compute the value of <em>x</em> as follows:

z=\frac{s-\mu}{\sigma}\\\\-2.33=\frac{x-7.6}{1.3}\\\\x=7.6-(1.3\times 2.33)\\\\x=4.571\\\\x\approx 4.6

Thus, the birth weight associated with the lowest 1% is 4.6 pounds.

7 0
3 years ago
What is the first step in solving the equation x2 – StartFraction 16 Over 25 EndFraction = 0? What is the second step in solving
Furkat [3]

Answer:

1. C

2. B

Step-by-step explanation:

6 0
2 years ago
What is 4x + 12 - 7 ?
shtirl [24]
The answer is
4x + 5 because you substract 12-7. very simple
4 0
3 years ago
Read 2 more answers
Which expression is equivalent to 27 + 45
s344n2d4d5 [400]

Answer:

72

Step-by-step explanation:

CALCULATOR

5 0
3 years ago
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