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3 years ago

Did I get this right? I want to make sure

Mathematics

1 answer:

Ratling [72]3 years ago

7 0

you are correct because the trend line shows the temperature rises 2 degree every hour

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I need help pls ! i need it by 11:59 pls help

emmainna [20.7K]

Answer:

what grade are you in and what school do you go to

Step-by-step explanation:

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3 years ago

Where is the blue dot? Fill in the blank

OverLord2011 [107]

Answer:

-19

Step-by-step explanation:

It's every 3 numbers because -7 would be between -10 & -4

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3 years ago

Convert.<br>5 days =<br>lao<br>hours

Andreas93 [3]

Answer:

120 Hours

Step-by-step explanation:

24 hours in a day

5 days

24 x 5 = 120

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3 years ago

Hurry plz! Will vote Brainly or whatever and will reward all point I can.

Naily [24]

Answer: 0.27

You can mark me brainliest on the other question you know

Step-by-step explanation:

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4 years ago

Find the probability that event A will appear at least three times in four independent tests if the probability of occurrence of

polet [3.4K]

This kind of problems are solved using Bernoulli's distribution. Everytime you have a win/lose scenario, and you know the probability $p$ of winning, and you want $k$ successes over $n$ trials, you have the following probability:

$\displaystyle P(k\text{ successes over }n\text{ trials}) = \binom{n}{k}p^k(1-p)^{n-k}$

You want the probability of having at least three successes, i.e. you are interested in the cases k=3 and k=4. The corresponding probabilities are

$\displaystyle P(3 \text{ successes}) = \binom{4}{3}0.6^3 \cdot 0.4 = 4\cdot 0.216 \cdot 0.4 = 0.3456$

$\displaystyle P(4 \text{ successes}) = \binom{4}{4}0.6^4 = 0.1296$

So, the total probability is $0.3456+0.1296 = 0.4752$

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4 years ago