Answer:
a= 20/3
Step-by-step explanation:
- Subtract 4/15 from 9/15
- Then take 5/15 and multiply it by 20
A' 1,-1
b' 3,-1
c' 3,-4
d' 1,-4
Answer:
Optioin 4
Step-by-step explanation:
12/8 = 15/(x-4)
12x - 48 = 120
12x = 168
x = 14
Answer:
1/3
Step-by-step explanation:
Let A be the event that you grab the fair coin and B be the event that you toss a tail.
P(A) is the probability that you grab the fair coin, which is 1/3
P(B) is the probability that you toss a tail, which is 1/2
P(B|A) is the probability that you toss a tail, given that you grab a fair coin, which is 1/2
P(A|B) is the probability that you grab the fair coin, given that you toss a tail, which we are looking for.
Using Bayes probability theorem we have:
