24nelsoaddh
05.02.2021 •
Mathematics
An urn contains three red marbles and four blue marbles. One marble is selected at random, its color is noted, and it is returned to the urn.
Another marble is then selected. What is the probability that the second marble drawn is red?
A.1/2
b:1/7
c:2/7
d:3/7
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Ответ:
i hope my answer help You
Step-by-step explanation:
the answe is d:3/7
Ответ:
|10-25|=|-15|=15
15/10 *100%= 150% increase is the answer.