You need to use the conditional probability formula:
P(A|B) = P(A∩B) / P(B)
Key:
P(A|B): Probability of A given B
P(A∩B): Probability of A and B
If we say A is the event that the train arrives on time and B is the event that the train leaves on time, then according to the information:
P(B) = 0.4
P(A∩B) = 0.28
Just insert into the formula:
P(A|B) = 0.28 / 0.4 = 0.7
(or 70% as a percentage).
Answer:
$104.12
Step-By-Step Explanation:
First divide $416.48 by 4 ↓
$416.48÷4= $104.12
Callie will have $104.12 less than what she earned each month once you take away the money she is paying for car repairs.
Answer:
50 pens
Step-by-step explanation:
x= 25 percent of 200
25/100 times X/200
Cross multiply them and you get
100x=5000
X=5000/100
X=50
25 percent of 200 is 50.
Which means they have away 50 pens
both 7 and 14 can be divided evenly by 7
7/14 reduced to its lowest would be 1/2