2 years ago

Solve the system by elimination -3x+4y=16 3x+y=4

Mathematics

1 answer:

Illusion [34]2 years ago

7 0

X's cancel 5y = 20 y= 4 X=0

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2 years ago

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1 year ago

If probability of catching a cold is 0.03, what is the probability of 3 people out of six catching a cold?

xeze [42]

Answer:

$P(X=x)=0.0004928$

Step-by-step explanation:

-This is a binomial probability problem.

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$P(X=x)={n\choose x}p^x(1-p)^{n-x}\\\\P(X=3)={6\choose3}0.03^3(1-0.03)^3\\\\=0.0004928$

Hence, the probability of exactly 3 in 6 people catching a cold is 0.0004928

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