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#326 2020-04-28 16:11:44

ganesh
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Registered: 2005-06-28
Posts: 31,715

Re: *** Problems

To find the probability of event A or B, we must first determine whether the events are mutually exclusive or non-mutually exclusive. Then we can apply the appropriate Addition Rule:

Addition Rule 1: When two events, A and B, are mutually exclusive, the probability that A or B will occur is the sum of the probability of each event.

P(A or B) = P(A) + P(B)

Addition Rule 2: When two events, A and B, are non-mutually exclusive, there is some overlap between these events. The probability that A or B will occur is the sum of the probability of each event, minus the probability of the overlap.

P(A or B) = P(A) + P(B) - P(A and B).

Your solution is correct. Good work!


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#327 2020-05-02 23:04:52

666 bro
Member
From: Flatland
Registered: 2019-04-26
Posts: 588

Re: *** Problems

The solution of #304 is r=5.


"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan

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#328 2020-05-02 23:53:37

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,715

Re: *** Problems

Hi,

Neat work!


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#329 2020-05-04 05:02:25

666 bro
Member
From: Flatland
Registered: 2019-04-26
Posts: 588

Re: *** Problems

The solution of #259 is  n=35


"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan

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#330 2020-05-04 14:16:43

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,715

Re: *** Problems

Hi,

Excellent!


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#331 2020-05-06 04:42:37

666 bro
Member
From: Flatland
Registered: 2019-04-26
Posts: 588

Re: *** Problems

Solution to #311 is (1/3).


"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan

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#332 2020-05-06 14:10:57

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,715

Re: *** Problems

Hi,


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#333 2020-05-06 19:15:02

666 bro
Member
From: Flatland
Registered: 2019-04-26
Posts: 588

Re: *** Problems

Solution for#254 is [(2) / (x-2)(x-4)]


"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan

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#334 2020-05-25 20:37:19

666 bro
Member
From: Flatland
Registered: 2019-04-26
Posts: 588

Re: *** Problems

The solution for #262 is -(a+nd).


"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan

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#335 2020-06-10 02:32:02

666 bro
Member
From: Flatland
Registered: 2019-04-26
Posts: 588

Re: *** Problems

Solution of #331: The values are
a=-13
b= 8

Last edited by 666 bro (2020-06-10 04:48:45)


"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan

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#336 2020-06-13 02:20:29

666 bro
Member
From: Flatland
Registered: 2019-04-26
Posts: 588

Re: *** Problems

The solution for #277 is 6


"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan

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#337 2020-06-13 04:12:15

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,715

Re: *** Problems

I am unable to check *** problems for some time


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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