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22.09.2019 •
Mathematics
Which unit would be approriate for the area of a soocer field that is 105 meters long and 67 meters wide?
a. centimetersb. metersc. cubic metersd. square meters
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Ответ:
Ответ:
5/11
Step-by-step explanation:
These are two independent events, because no matter which color the ball picked from jar #1 it will not affect the draw in jar #2.
To evaluate the probability of both balls to be white, we first need to evaluate the probability of each draw resulting in a white ball then multiply those probabilities.
First urn: 10 white, 6 yellow balls
Chances to get a white ball: 10/16, or 5/8.
Second urn: 8 white, 3 yellow balls
Chances to get a white ball: 8 / 11
Chances for both balls to be white:
5/8 * 8/11 = 5/11