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pochemuha
2 years ago
12

Please help me ASAP!!!!!

Mathematics
1 answer:
Natali [406]2 years ago
5 0

Answer: 24

I could be wrong but I believe it’s 24

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If we sample from a small finite population without​ replacement, the binomial distribution should not be used because the event
seropon [69]

Answer:

5/4324 = 0.001156337

Step-by-step explanation:

To better understand the hyper-geometric distribution consider the following example:

There are 100 senators in the US Congress, and suppose 60 of them are republicans  so 100 - 60 = 40 are democrats).

We extract a random sample of 30 senators and we want to answer this question:

What is the probability that 10 senators in the sample are republicans (and of course, 30 - 10 = 20 democrats)?

The answer using the h-g distribution is:

\large \frac{\binom{60}{10}\binom{100-60}{30-10}}{\binom{100}{30}}=\frac{\binom{60}{10}\binom{40}{20}}{\binom{100}{30}}

Now, imagine there are 56 senators (56 lottery numbers), 6 are republicans (6 winning numbers and 50 losers), we extract a sample of 6 senators (the bettor selects 6 numbers). What is the probability that 4 senators are republicans? (What is the probability that 4 numbers are winners?).

<em>As we see, the situation is exactly the same,</em> but changing the numbers. So the answer would be

\large \frac{\binom{6}{4}\binom{56-6}{6-4}}{\binom{56}{6}}=\frac{\binom{6}{4}\binom{50}{2}}{\binom{56}{6}}

Now compute each combination separately:

\large \binom{6}{4}=\frac{6!}{4!2!}=15\\\\\binom{50}{2}=\frac{50!}{2!48!}=1225\\\\\binom{50}{6}=\frac{50!}{6!44!}=15890700

and now replace the values:

\large \frac{\binom{6}{4}\binom{50}{2}}{\binom{56}{6}}=\frac{15*1225}{15890700}=\frac{18375}{15890700}=\frac{5}{4324}

and that is it.

If the decimal expression is preferred then divide the fractions to get 0.001156337

6 0
3 years ago
A. 29<br> B. 24<br> C. 20<br> D. 14
slava [35]
The answer is C. Hope that helps
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3 years ago
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What is the hypotenuse and how can you tell whether it's a hypotenuse or a short leg? Thx
neonofarm [45]
The hypothenuse is the opposite side of the right angle

so that means that in this triangle the hypotenuse is 7
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2 years ago
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In ΔABC, if AB = 10 and BC = 6, AC can NOT be equal to
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Answer:

16

Step-by-step explanation:

adding any two sides of a triangle is allways greater than the third side

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3 years ago
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lianna [129]

Answer:

4 parts 3

Step-by-step explanation:

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