Answer:
3/98
Step-by-step explanation:
six black socks, 6 blue socks, 12 white socks, and 4 pattern socks= 28 socks
P( blue ) = blue /total = 6/28 = 3/14
Replace it
six black socks, 6 blue socks, 12 white socks, and 4 pattern socks= 28 socks
P ( pattern) = pattern/total = 4/28 = 1/7
P( blue,replace, pattern) = 3/14*1/7 = 3/98
No need for the diagram (though it helps)
P(AUB) = P(A) + P(B) - P(A and B),
P(A) = 0.61 - 0.41 + 0.18 = 0.38
So, D!!
3(x - 8) = 4
3(x) - 3(8) = 4
3x - 24 = 4
+ 24 + 24
3x = 28
3 3
x = 9¹/₃
Note that the two events are mutually exclusive. If the question is answered correctly on the first try, there's no need to give it another attempt. So

.
We're given that

and

. From the first probability, we know that

. By definition of conditional probability,


We're interested in the probability of either

or

occurring, i.e.

. Apply the inclusion-exclusion principle, which says

We know the probability of intersection is 0, and we know

. Meanwhile, by the law of total probability, we have

so we end up with
Hello.
49.75 = 30 + 0.05m
Subtract 30 from both sides.
49.75 - 30
19,75 = 0.05m
Divide both sides by 0.05
395 miles = m
Have a nice day