A bag contains 30 white balls and 10 red balls. 16 balls are drawn one by one randomly from the bag with replacement. If X be the number of white balls drawn, the is equal to
a. |
4 |
b. |
|
c. |
d. |
3 |
A bag contains 30 white balls and 10 red balls. 16 balls are drawn one by one randomly from the bag with replacement. If X be the number of white balls drawn, the is equal to
a. |
4 |
b. |
|
c. |
d. |
3 |
P (probability of getting white ball) =
q = and n = 16
mean = np = 16. = 12 and
standard deviation = = =