Answer: 5 units
Step-by-step explanation:
Answer:
dff
Step-by-step explanation:
saf
Answer:
34
first of all use formula:
n(AUB)=n(A)+n(B)-n(AnB)
Answer: C. Along the rows and columns .
Step-by-step explanation:
Answer: Without replacing
Step-by-step explanation:
If you don't replace the first red marble, it decreases the number of red marbles in the mix, making the proportion of blue marbles relatively larger. For example, if there were 5 red and 5 blue marbles, there would be a 50% chance of drawing a blue marble. If the red drawn is not replaced, there is a 5/9 chance of drawing a blue marble, or a 55% chance of drawing one.