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2 years ago

15

Three randomly chosen people decide to check the calendar from the year they were born to see what day of the week they were bor

n on (Monday, Tuesday, Wednesday, ...). What is the probability that at least two of them were born on the same day of the week?

1 answer:

Wittaler [7]2 years ago

6 0

Answer:

jack broke my thingy, now it doesnt snap properly

Step-by-step explanation:

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The cost of a week long vacation in a city has a mean of 1000 and a variance of 1200. The city imposes a tax which will raise al

matrenka [14]

Answer:

The coefficient of variation after the tax is imposed is 0.033

Step-by-step explanation:

Given

$\mu =1000$ --- mean

$\sigma^2 = 1200$ --- variance

$tax = 10\%$

Required

The coefficient of variation

The coefficient of variation is calculated using:

$CV = \frac{\sqrt{\sigma^2}}{\mu}$

After the tax, the new mean is:

$\mu_{new} = \mu * (1 + tax)$

$\mu_{new} = 1000 * (1 + 10\%)$

$\mu_{new} = 1100$

And the new variance is:

$\sigma^2_{new} = \sigma^2 * (1 + tax)$

$\sigma^2_{new} = 1200 * (1 + 10\%)$

$\sigma^2_{new} = 1320$

So, we have:

$CV = \frac{\sqrt{\sigma^2}}{\mu}$

$CV = \frac{\sqrt{1320}}{1100}$

$CV = \frac{36.33}{1100}$

$CV = 0.033$

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3 years ago

Help me please m, it due soon

allsm [11]

Surface area= 2(6x15)+2(7x15)+2(6x7)
=180+210+84
=474m

Volume=15x6x7
=630m^2

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2 years ago

PLEASE HELP ME! IT WOULD BE VERY MUCH APPRECIATED!

RideAnS [48]

Answer:

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Step-by-step explanation:

You know that I can't solve this right?

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2 years ago

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‼️HELP FAST‼️<br> What are the zeros of this function?

nika2105 [10]

Answer:

C

Step-by-step explanation:

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3 years ago

Assoli18 [71]

39 miles. If d=rt and the rate is 16 mph and the time is 3 hours then 16 times 3 gives the distance of 39 miles. I could be wrong but that is what I would have done. I’m not sure if there are answer choices or not

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3 years ago