A bag contains 19 white balls and 6 black balls. the balls are drawn with replacement. what is the expected number of white ball
s drawn before the 13 th black ball is drawn.
1 answer:
For every four white balls taken out one black ball is taken out so it would be the 52 white ball
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Answer: 192 books
Step-by-step explanation:
2/3 + 1/4 = 11/12
16 remaining books = 1/12
16 x 11 = 176
176 + 16=192
S=2×3.14×r×h+2×3.14×r²
so,h={s / (6.28r)} - r
1/2n - 4 = 5
1/2n = 5 + 4
1/2n = 9
n = 9 * 2
n = 18 <==
C) I think
If I’m wrong I’m rlly sorry
Estimated answer : 4
Actual answer : 3 9/10