Two events, a and b, are independent. if p(a) = 0.3 and p(b) = 0.2, what is p(a and b)?

0.06

Step-by-step explanation:

As the two events are independent

Therefore

As it is given that and

Putting these value we get

is the required answer

he spend 5.1 minutes chatting with his friends.

step-by-step explanation:

2/5+1/2=9/10

6/1-9/10=5.1

the first one, all those points on the line just make a strait line.