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The probability of randomly selecting a prime or an even number
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11 Oct 2021, 05:18
11 Oct 2021, 05:18
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Question Stats:
45% (00:51) correct
54% (00:39) wrong based on 42 sessions
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Quantity A |
Quantity B |
The probability of randomly selecting a prime or an even number from the set \({1,2,4,7,9}\) |
\(\frac{ 4}{5}\) |
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
Re: The probability of randomly selecting a prime or an even number
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11 Oct 2021, 10:02
11 Oct 2021, 10:02
1
Carcass wrote:
Quantity A |
Quantity B |
The probability of randomly selecting a prime or an even number from the set \({1,2,4,,7,9}\) |
\(\frac{ 4}{5}\) |
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
Favourable outcomes for A = {2,4,7} - even or prime = 3/5
B is greater
Re: The probability of randomly selecting a prime or an even number
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14 Dec 2023, 09:33
14 Dec 2023, 09:33
Carcass , what is the difference between my approach and approach taken by eskay1981 ?
P(Prime or Even)=P(Prime)+P(Even)−P(Prime and Even)
P(Prime or Even)=2/5 + 2/5 - (2/5 *2/5)
P(Prime or Even)= 16/25
P(Prime or Even)=P(Prime)+P(Even)−P(Prime and Even)
P(Prime or Even)=2/5 + 2/5 - (2/5 *2/5)
P(Prime or Even)= 16/25
