Answer:
76
725
63
72
Step-by-step explanation:
700-7125 sksksksksks
The probability that a part picked from this batch at random is either red or L-shaped is 0.68
Step-by-step explanation:
Let us revise some rules of probability
The addition rules are:
- P(A or B) = P(A) + P(B) ⇒ mutually exclusive (events cannot happen at the same time)
- P(A or B) = P(A) + P(B) - P(A and B) ⇒ non-mutually exclusive (if they have at least one outcome in common)
∵ A batch has 100 parts
∵ 40 are red
- Probability of an event is the [even occurs/total outcomes]
∴ P(red) = 
∵ 50 are L-shaped
∴ P(L-shaped) = 
∵ 22 are both red and L-shaped
∴ P(red and L-shaped) = 
This is non-mutually exclusive because there is a common between them, so we will use the 2nd rule
∵ P(red or L-shaped) = P(red) + P(L-shaped) - P(red and L-shaped)
∴ P(red or L-shaped) = 0.4 + 0.5 - 0.22
∴ P(red or L-shaped) = 0.68
The probability that a part picked from this batch at random is either red or L-shaped is 0.68
Learn more:
You can learn more about the probability in brainly.com/question/2254182
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The answer is A, because 7.5 times 400 is 3000 so you need at least 400 boxes.
Answer:
x = 28°
Step-by-step explanation:
Take angle on a straight line which is equal to 180°
180° =(108 + 44 + x)°
180° = 152° + x°
180° - 152° = x°
28° = x
Answer:
x - 6.
Step-by-step explanation:
3(x-6) = 3x -18
3x -18 + 4x + 12 -6x = x - 6