Question

Use the following table to answer the question.
Find P(D).

Answer 1

X A B C D
P(X) 0.30 0.20 0.22 ?

Answer 2

P(D) = 1 - P(A + B + C)

Answer 3

0.30+0.20+0.22= 0.72
Now i subtract that by 1?

Answer 4

i mean sum of second row must equal to 1

Answer 5

yes thats right !

Answer 6

I got .28
Is that right?

Answer 7

correct

Answer 8

Thanks!!!

Answer 9

what about
You roll 1 die. Find P(the number rolled is not prime). Remember that a prime number is one that can be divided only by itself and 1.

Answer 10

Would that be 50%?

Answer 11

careful... 2 is also a prime number

Answer 12

Now you've lost me.

Answer 13

Wait so..
1 -> Not a prime
2 -> Prime
3 -> Prime
4 -> Not a prime
5 -> Prime
6 -> Not a prime

Answer 14

oh 1 is not a prime is it ?
im not sure lol

Answer 15

haha the answer was 1/2

Answer 16

gotcha thank you :D