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bearhunter [10]
3 years ago
10

When you flip a baised coin the probability of getting tail is 0.75 How many times would you expect to get tails uf you flip the

coin 320 times?
Mathematics
2 answers:
Elis [28]3 years ago
7 0

Answer: 60

How?: Well, we know that we have a 0.75 chance for tails. And on a coin, there is heads and tails. So, we multiply 0.75 (tails) by 320 and then divide that by 4. We do this because there is a 0.75 and 1 = 1.00. 1.00 - 0.75 = 0.25. 0.25 = 60

Ierofanga [76]3 years ago
3 0

Answer:240

Step-by-step explanation:

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1. Find the factor pairs of the following number: 54​
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1, 2, 3, 6, 9, 18, 27, 54.

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If you were to flip a coin 10 times, what is the probability that it will land on heads exactly 7 out of 10 times?
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Answer:

The probability of flipping a coin 10 times and it landing on heads exactly seven times is about 0.1172 or 11.72%.

Step-by-step explanation:

We can use basic binomial distribution, which is given by the formula:

\displaystyle P(x) = {n \choose x}p^xq^{n-x}

Where <em>n</em> represent the number of trials, <em>x</em> represent the number of successes desired, <em>p</em> represent the chance of success, and <em>q</em> represent the chance of failure.

Since we are flipping a coin 10 times, we are conducting 10 trials. So, <em>n</em> = 10.

We want to probability that it lands on heads exactly 7 out of 10 times. So, the number of desired successes <em>x</em> is 7.

The probability of success <em>p</em> is 1/2.

And the probability of failure <em>q</em> is also 1/2.

Substituting:

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The probability of flipping a coin 10 times and it landing on heads exactly seven times is about 0.1172 or 11.72%.

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