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Every one who passes the test will be awarded a degree. The

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Every one who passes the test will be awarded a degree. The [#permalink] New post 07 May 2019, 02:15
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Every one who passes the test will be awarded a degree. The probability that Tom passes the test is 0.3, and the probability that John passes the test is 0.4. The two events are independent of each other. What is the probability that at least one of them gets the degree?

(A) 0.28

(B) 0.32

(C) 0.5

(D) 0.58

(E) 0.82
[Reveal] Spoiler: OA

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Re: Every one who passes the test will be awarded a degree. The [#permalink] New post 04 Sep 2019, 23:19
.58
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Re: Every one who passes the test will be awarded a degree. The [#permalink] New post 06 Sep 2019, 01:40
How 0.58??
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Re: Every one who passes the test will be awarded a degree. The [#permalink] New post 07 Sep 2019, 06:44
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Here we can calculate the probability by 1- probability of both not getting degree ie 1-(0.7)(0.6)
1-0.42 =0.58
Re: Every one who passes the test will be awarded a degree. The   [#permalink] 07 Sep 2019, 06:44
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Every one who passes the test will be awarded a degree. The

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