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genyjoannerubiera
20.09.2020 •
Mathematics
Question 14 Multiple Choice Worth 1 points)
(02.05 LC)
+
The amount $4.50 is 6% of what price?
O $10.50
O $13.30
O $27.00
O $75.00
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Ответ:
.27
Step-by-step explanation:
4.5*6/100
=.27
Ответ:
a) 3.906 × 10⁻¹⁹
b) 200 days
c) 2.56 × 10¹⁸ days
Step-by-step explanation:
Probability that a computer fails in a day = 0.005.
This probability is very similar to the number of computers that'll fail in a day, that is, number of computer failures per day = 0.005
a) Probability that all the 8 computers fail in a day.
This probability is setup as a binomial distribution problem, but ⁸C₈ = 1 and q⁰ = 1
So, P(X=8) = (0.005)⁸ = 3.906 × 10¹⁹
b) The mean number of days until a specific computer fails
Number of failure = 0.005 per day
Mean number of days = E(X) = 1/0.005 = 200 days
c) Mean number of days until all the 8 computers fail
E(X) = 1/(3.906 × 10⁻¹⁹)
E(X) = 2.56 × 10¹⁸ days