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3 years ago

14

Please look at the image for the question

1 answer:

Alex Ar [27]3 years ago

7 0

Answer:

try b

Step-by-step explanation:

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If there is a 25% discount, what percent of the original price must a customer pay

steposvetlana [31]

Answer: 75% Of the original price

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3 years ago

12,548 rounded to the nearest thousand and 4,685 rounded to the nearest thousand

ehidna [41]

Answer:

12,548 rounded to the nearest thousand is 13,000 and 4,685 rounded to the nearest thousand is 5,000

Step-by-step explanation:

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3 years ago

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The price for certain produce items at Greg's local supermarket are

Vaselesa [24]

72.28 i took the test it was easy bro

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3 years ago

What is the product? (5r + 2)(3r − 4)

Novay_Z [31]

15r^2 - 14r -12 is the correct answer

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4 years ago

Read 2 more answers

Help binomial distributions

Ymorist [56]

We have the formula to compute the probability of having exactly k successed over n trials, given a probability p of success (and implicitly a probability 1-p of failure), which is

$P(\text{k successed on n trials}) = \binom{n}{k}p^k(1-p)^{n-k}$

Now, the probability of at least 3 successes is the union of the following event: exactly three successes,exactly four successes and exactly five successes.

We can compute their probability and sum them: $\binom{5}{3}\left(\frac{3}{7}\right)^3\left(\frac{4}{7}\right)^2 + \binom{5}{4}\left(\frac{3}{7}\right)^4\left(\frac{4}{7}\right)^1 + \binom{5}{5}\left(\frac{3}{7}\right)^5 \approx 0.36788$

So, the answer is about 36.79%

3 0

3 years ago