Part (a) Finding the probability of either A or B
We are told that events A and B are mutually exclusive. This means they cannot happen at the same time. We can say P(A and B) = 0
Furthermore,
P(A or B) = P(A) + P(B) - P(A and B)
P(A or B) = 0.4 + 0.2 - 0
P(A or B) = 0.6
<h3>Answer: 0.6</h3>
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Part (b) Finding the probability of neither A nor B
P(A or B) + P(neither A nor B) = 1
P(neither A nor B) = 1 - P(A or B)
P(neither A nor B) = 1 - 0.6
P(neither A nor B) = 0.4
The reason why this works is to imagine throwing a dart at the Venn diagram. You'll either...
- you land in A or B (pick one but not both), OR,
- you'll land outside both regions A and B.
One or the other must happen. Both events cannot happen simultaneously.
<h3>Answer: 0.4</h3>
Answer: Green
Explanation:
Mode is the number (or in this case, color) that appears the most amount of times.
This is how many time each color appears:
Green: 3
Black: 3
Blue: 1
Red: 4
Orange: 2
Since Green appears the most, the mode is Green.
4× 4 3/10= 4×43/10= 86/5= 17 1/5
Answer:
x=7
Step-by-step explanation:
BRAINLIEST?
, 2p+3)x2+(4p−14)x+16p+1=0
has coincident roots.
