P(D) = P(C)
We know that in total all (a,b,c,d) equal 1
So .28+.56+C+D=1
We can interpret it as
.84 + 2x = 1
x=.08
So P(D) = .08
1 divided by 50 is 0.02, so it's 0.02
Answer:
See below ~
Step-by-step explanation:
<u>Question 12</u>
- Numbers greater than 3 : 5
- Total numbers : 8
- P (number > 3) = 5/8
- Multiply with 400
- 5/8 x 400
- 5 x 50
- <u>250 times</u>
<u></u>
<u>Question 17</u>
<u>Part A</u>
- Possible outcomes = <u>{HT, HH, TH, TT}</u>
<u />
<u>Part B</u>
- P (heads at least once) = Outcomes with at least one "H" / Total
- P (heads at least once) = <u>3/4</u>