If the axis is x then you go to y so (6, 5)
Let event A = Caroline buys fruit, event B = Caroline buys CD, Ac and Bc are complementary events.
Events AB, ABc, AcB and AcBc are jointly exhaustive and disjoint, hence P(AB) + P(ABc) + P(AcB) +P(AcBc) =1.
Events A and B independent, hence Ac and Bc independent too and probability P(AcBc) = P(Ac)*P(Bc) = (1 - P(A))(1-P(B)) = 0.6*0.4 = 0.24.
Required probability P(AB + ABc + AcB ) = P(AB) + P(ABc) + P(AcB) = 1- P(AcBc) = 1 - 0.24 = 0.76.
Answer: Probability that Caroline buys fruit, a CD or both is 0.76.
This is experimental probability.
If 12 were found to be defective out of 280 the experimental probability of a purifier being defective is:
12/280 which is:
4.3% (to nearest tenth of a percent)
There will be 121 handshakes because 11 times 11 is 121
2.5(10x - 16) = 5
2.5 is multiplying on the left, then it will divide on the right
10x - 16 = 5/2.5
10x - 16 = 2
16 is subtracting on the left, then it will add on the right
10x = 2 + 16
10x = 18
10 is multiplying on the left, then it will divide on the right
x = 18/10
x = 1.8
