What is 12 2/5 +(-3 1/4) equal to
1 answer:
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Answer:
16.15% probability that exactly 3 of them would function
Step-by-step explanation:
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
In which is the number of different combinations of x objects from a set of n elements, given by the following formula.
And p is the probability of X happening.
Probability of each system working:
4 components, which means that
Each has a 30% probability of failing, so
For the system to work, all 4 components have to work. This is P(X = 4).
0.2401 probability of a system working.
If you have 7 of these systems, what is the probability that exactly 3 of them would function?
Now 7 systems, so
0.2401 probability of a system working.
We have to find P(X = 3).
16.15% probability that exactly 3 of them would function
Answer:
a=1/2
Step-by-step explanation:
From the question, the expression a(8x+7) is equivalent to 4x+3.5
Which means that multiplying 8x by a gives 4x and multiplying 7 by a gives 3.5
So, we can write the following to find the value of a
we can write the following
8ax=4x
Hence the value of a is 1/2