Answer:
Hello! answer: 12
Step-by-step explanation:
1/4 × 1/3 = 1/12 therefore there our 12 possible outcomes
Solution:
p(-1)=3 and p(5)=20
x=-1 and x=5
From the equation given you have one for any number smaller then 4and any number bigger then 4.
So if you plug -1 into the correspondant equation you would get 3 and if you plug 5 into the correspond equation you would get 20.
Answer:
Second one.
Answer with Step-by-step explanation:
Contain Buy Do not contain Buy Total
Spam 48 12 60
Not Spam 4 36 40
P(it contains the word buy and it is spam)=48/100
P(It is spam)=60/100
Baye's theorem states that:
P(A given B)=P(A∩B)/P(B)
P( it contains the word buy, Given that an email is spam)
=P(it contains the word buy and it is spam)/P(It is spam)
= 0.48/0.60
=0.80
Hence, Correct option is:
A.] 0.80
0.1x = 0.2(x + 2)
First, divide both sides by 0.1 / Your problem should look like: x = 2(x + 2)
Second, expand. / Your problem should look like: x = 2x + 4
Third, subtract 2x from both sides. / Your problem should look like: x - 2x = 4
Fourth, simplify x - 2x to -x. / Your problem should look like: -x = 4
Fifth, multiply both sides by -1. / Your problem should look like: x = -4
Answer: x = -4