Probability 5 Question 8
8. A box contains 15 green and 10 yellow balls. If 10 balls are randomly drawn one-by-one with replacement, then the variance of the number of green balls drawn is
(a)
(b) 6
(c) 4
(d)
(2017 Main)
Show Answer
Answer:
Correct Answer: 8. (a)
Solution:
- Given box contains 15 green and 10 yellow balls.
