Answer:
a. A and B are disjoint
Step-by-step explanation:
We know that P(A and B)=0, It means that event A and event B have nothing in common and it means that event A and event B are disjoints events.
The event A and event B are independent if
P( A and B)= P(A)*P(B)
P(A)*P(B)=0.3*0.2=0.06
So, P(A and B)≠P(A)*P(B)
Hence events A and B are not independent.
Option a is A and B are disjoints which is correct
Option b is A and B are neither disjoints nor independent which is partially false as A and B are disjoints event.
Option c states that A and B are independent which is clearly false.
Option d states that A and B are disjoints and independent which is partially false as A and B are not independent.
Hence the correct option is option A.
5/6 is equivalent to 20/24
3/4 is equivalent to 18/24
so 5/6 is bigger than 3/4 by 2/24
Option B: 3 is the right answer
Step-by-step explanation:
If y varies directly as x, it can be expressed as:
y ∝ x
If the values in table are directly proportional then the value of k should be same for all pairs.
the table is directly proportional and the value of k is 3
Hence,
Option B: 3 is the right answer
Keywords: Proportion, variation
Learn more about proportion at:
#LearnwithBrainly
No solution.
Solve for x.
x+1=x+2
>move x to the left side (combine variables)
> 0+1=2
>1=2 (1 doesn't equal 2, so no solution)