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victus00 [196]
3 years ago
13

yearly 17% rate of failure. Answer the following question.What is the probability that if you buy four computers, at least 1 wil

l fail within a year?
Mathematics
1 answer:
almond37 [142]3 years ago
5 0
68%. There is a 17% faliure rate for a computer, so if you buy 4 computers...
17 x 4 = 68%

Correct me if Im wrong!
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A bag contains n blue and m red marbles. You randomly pick a marble from the bag, write down its color, and then put the marble
Oksana_A [137]

Answer:

(mn+n²)/(m+n)

Step-by-step explanation:

probability of blue marble= n/(n+m)

probability of red marble= m/(n+m)

probability that process stops = Probability of both blue + probability of both red=  n/(n+m) × n/(n+m) + m/(n+m)×m/(n+m)

                        = (n²+m²)/(n+m)²

P(1st marbel is blue)= P(blue and red) + P(blue and blue)

                                  = mn/(n+m) + n²/(n+m)

                                   = (mn+n²)/(m+n)

P(1st marble is blue | process stops)= ( (mn+n²)/(m+n)× (n²+m²)/(n+m)²)/ ((n²+m²)/(n+m)²)

= (mn+n²)/(m+n)

3 0
3 years ago
300g of bananas cost £1.80. how much does 1kg cost?
amm1812
Maybe try dividing by 300 and timesing by 1000?
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