The theoretical probability would be 10/20 but the experimental probability was 7/20.
Answer:
i think the third one and the last box is rational and the other one are not
Step-by-step explanation:
In words it would be said Thirty nine point four
P(a ∪ b) = p(a) + p(b) - p(a ∩ b)
p(a ∩ b) = p(a) + p(b) - p(a ∪ b)
p(a ∩ b) = 1/3 + 2/5 - 3/5
p(a ∩ b) = 2/15
Positive: 690
Negative: -30
