Answer: C. 
Step-by-step explanation:
Given: Box contains 8 green balls and 4 purple balls.
Total balls = 8+4 = 12
event 1 = first picking green ball
event 2 = second picking purple balls.
As first ball was replaced, that means both events are independent.
Probability that you have selected a green ball and then a purple ball = P(purple ball )
Formula for probability = 
Probability of selecting a purple ball (second pick)= 
The required probability , so C is correct option.
Answer:
3
Step-by-step explanation:
If 4 | 1 = 41, that means that when you're looking at the number, you basically see it without the "|". If you see it that way, the smallest number would be 03.
20+64=84 40+44=84 74+10=84 30+54=84
Answer:
6.25 or 6 1/4
Step-by-step explanation:
because 50 divided by 8 is 6.25
Answer:
A class has been omitted.
Explanation:
Given the frequency distribution shown in the attached table.
the frequency distribution is incorrectly constructed because a class has been omitted.
On the given table the class 133-137 is missing on the frequency distribution table.
