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arsen [322]
3 years ago
7

How many ways can two students be chosen from a group of four? 4 6 14 10

Mathematics
1 answer:
taurus [48]3 years ago
8 0

Answer:

6

Step-by-step explanation:

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I think the answer is 16=x
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WILL GRANT BRAINIEST IF CORRECT, PLEASE HELP!!
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It was reported that 23% of U.S. adult cellphone owners called a friend for advice about a purchase while in a store. If a sampl
leva [86]

Answer:

P(X=7)

And using the probability mass function we got:

P(X=7)=(15C7)(0.23)^7 (1-0.23)^{15-7}=0.0271  

Step-by-step explanation:

Let X the random variable of interest, on this case we now that:  

X \sim Binom(n=15, p=0.23)  

The probability mass function for the Binomial distribution is given as:  

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Where (nCx) means combinatory and it's given by this formula:  

nCx=\frac{n!}{(n-x)! x!}  

And we want to find the following probability:

P(X=7)

And using the probability mass function we got:

P(X=7)=(15C7)(0.23)^7 (1-0.23)^{15-7}=0.0271  

5 0
3 years ago
Solve for m.t=mr^2/3
spin [16.1K]

t = mr^2/3

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Read 2 more answers
Ordered pairs of y=2/3x+1
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