Which expression is equivalent to the given expression?
2 answers:
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<h2>Answer with explanation:</h2>
A box contains 12 balls numbered 1 through 12.
Also the ball are drawn without replacement.
a)
The probability that the first ball had a smaller number on it.
i.e. the number on the first ball could be: {1,2,3}
Hence, the probability that the first ball had a smaller number on it is:
b)
The probability that the first ball has a even number on it is:
There are total 6 even numbers {2,4,6,8,10,12}
but 4 can't be considered as it comes on the second draw, so we are left with just 5 balls with even number.
Hence, the probability is:
Answer:
Step-by-step explanation:
v=√u*u- 2qs
x 20 - 2q40 = 8
x 20 - 2q40 = 8
- 40
- 2q40 = 8
- - 2q40 = 8 - 40
- -80q = 8 - 40
- q = (8-40
= 1.018