Answer:
The solution is in the attached file
Answer:

Step-by-step explanation:
Sample size 52 card
Pay for J or Q 
Pay for King or Ace 
Pay for others 
Therefore
Probability of drawing J or Q

Probability or drawing King or Ace

Probability or drawing Other cards

Therefore
Expected Gain is mathematically given as



Answer:
128 vehicles
Step-by-step explanation:
32 trucks being 25 % or 1/4 of the vehicles, you simply mulitply 32 x 4=128