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glizbethh00
08.06.2021 •
Mathematics
jimmy is moving to a new apartment. he fills a box with 4 books, 5 DVDs, and 2 CD's. when he starts unpacking his new place he pulls out one object from the box places it on the shelf then pulls out a second object from whats left find the probability of jimmy pulling out a book then a dvd
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Ответ:
Step-by-step explanation:
First, find the probability of him pulling out a book.
There are 11 objects in total, and there are 4 books.
So, the probability of pulling out a book is![\frac{4}{11}](/tpl/images/1367/1910/c4bb9.png)
Next, find the probability of him pulling out a DVD after.
Since a book was taken out, there are only 10 objects left. There are 5 DVDs.
So, the probability of pulling out a DVD is
, or simplified to ![\frac{1}{2}](/tpl/images/1367/1910/9cdae.png)
To find the probability that this happens in order, multiply the probabilities:
=![\frac{2}{11}](/tpl/images/1367/1910/94870.png)
So, the probability is![\frac{2}{11}](/tpl/images/1367/1910/94870.png)
Ответ:
The answer is -8%
46-50/50 x 100% = -8
Step-by-step explanation: