Question

31. A box contains 10 balls numbered from 1 to 10. A ball is drawn from the box. What is
the probability that the number of the drawn ball is not greater than 10?

32. A bag contains 3 white and 9 black balls. Find the probability of drawing a white ball
from it.

33. A bag contains 5 white and 8 black balls. Find the probability of drawing a white ball
from it.
has contains 4 white 5 black and 6 yellow balls Find the probability of drawing a​

Answer 1

Answer:

31 - For each ball, the probability will be 1/100. Since there are 10 balls, the probability that Ann and Jane will pick the same ball is, therefore, 10 x 1/100 = 10/100 = 1/10.

Answer 2

Answer:

31. We know the box has 10 balls numbered 1 - 10. We also know that the formula for probability is $\frac{Number of favorable outcomes}{Total number of outcomes}$ so, 10/10 = 1

32. The probability would be 3/12 = 1/4

33. 5/13