Answer:a) 54/55
b) 100/110
c) 99/110
Step-by-step explanation:
a)Probability of ordering 4= 9/12×3/11×2/10×1/9 = 54/11880
Probability of 4 good units= 4 × 54/11880
= 216/11880
1/55
1-(1/55) = 54/55
b)Probability of 2 good units= 2 × 54/(11880)
= 108/11880
= 1/110
1- (1/110)= 100/110
c) Probability of exactly 2 units not good= 1 -(100/110) =99/110
Answer:
z= 0.375 or 3/8
Step-by-step explanation:
18 line segments also for faster and better u can 6 times 3 since there is already three in a triangle.
Answer:
45
Step-by-step explanation:
Answer:
The diagram reprents the 3 sets and the universal set . The shaded portion clearly can be seen as :
Shaded region = 
Try to understand some what complex
