The probability that a candidate chosen at random from among these two sets of candidates will have selected questions 1, 2 and 3 is 0.4179.
<h3>How to calculate probability?</h3>
The probability that a candidate chosen at random from among these two sets of candidates will have selected questions 1, 2 and 3 will ba calculated thus:
= [(9C6 /12C9) × 1/2] + [(9C7)/12C10) × 1/2]
= 42/220 + 18/66
= 0.1909 + 0.2727
= 0.4179
In conclusion, the probability is 0.4179.
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Answer:
you're answer is d
Step-by-step explanation:
you make the 9 positive and add 9 to -51 and you get -42 then you divide by 6 and get -7
Answer:
It owuld be -2
Step-by-step explanation:
Yes
Answer:
The answer to your question is 1 5/7 or 1.7 hours ≈ 1:43 min
Step-by-step explanation:
Data
Bob lasts 3 hours
Fred lasts 4 hours
Together = ?
Process
1.- Determine what they do in 1 hour
Bob = 1/3 in x hours x/3
Fred = 1/4 in x hours x/4
2.- Write the equation to this problem
x/3 + x/4 = 1
3.- Solve it for x
(4x + 3x)/12 = 1
7x = 12
x = 12/7
x = 1 5/7 or 1.7 hours ≈ 1:43 min
Answer:
-2
Step-by-step explanation:
First imagine that the negative is not there.
So the problem would be 12 divided by 6
Then divide.
You would get 2.
Next, add the negative sign in front of the 2.
Bam! You get the answer of -2.
Hope this helped!
~Oreo
