The probability that the first one is a white pebble and the second one a black pebble is 26.51%.
What is probability?
Probability means possibility. It deals with the occurrence of a random event. The value of probability can only be from 0 to 1. Its basic meaning is something is likely to happen. It is the ratio of the favorable event to the total number of events.
A bowl contains 7 white pebbles and 5 black pebbles. A pebble is chosen and not replaced, then another pebble is picked.
Then the probability that the first one is a white pebble and the second one a black pebble will be
Total event = 12
Number of the white pebbles = 7
Number of the black pebbles = 5
Then the probability will be
[tex]\rm P = \dfrac{7}{12} \times \dfrac{5}{11}\\\\P = \dfracd{35}{132}\\\\P = 0.2651 \ or \ 26.51\%[/tex]
More about the probability link is given below.
https://brainly.com/question/795909
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