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3 years ago

Add and simplify: 9/16 + 1/2=? 5/8 7/16 1 1/16 1 5/9

Mathematics

2 answers:

Rina8888 [55]3 years ago

5 0

Answer:

1 1/+6

Step-by-step explanation:

9/16 + 8/16=17/16=1 1/16

Dovator [93]3 years ago

3 0

Answer:

1 1/16.

Step-by-step explanation:

The Lowest Common Denominator of 2 and 16 is 16 so we have:

9/16 + 1/2

= 9/16 + 8/16

= 17/16

= 1 1/16.

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Answer:

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Step-by-step explanation:

The appropiate distribution to model this is the hypergeometric distribution:

$P(X=x)=\frac{\binom{s}{x}\binom{N-s}{M-x}}{\binom{N}{M}}=\frac{\binom{6}{x}\binom{54}{10-x}}{\binom{60}{10}}$

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b) What is the probability that at least one is essay?

$P(X=1)=\frac{\binom{6}{1}\binom{54}{9}}{\binom{60}{10}}\\\\P(X=1)=\frac{6*(54!/(9!*43!)}{60!/(10!*50!)} =\frac{3.1908*10^{10}}{7.5394*10^{10}} =0.4232$

c) What is the probability that two or more are essay?

$P(X\geq2)=1-(P(0)+P(1))=1-(0.3174+0.4232)=1-0.7406=0.2594$

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Answer:

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