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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 26,118

Hi,

.

#3906. Cards marked with one of the numbers 4, 5, 6, ..., 20 are placed in a box and mixed thoroughly. One card is drawn at random from the box. What is the probability of getting an even number?

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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**Monox D. I-Fly****Member**- From: Indonesia
- Registered: 2015-12-02
- Posts: 1,269

Actually I never watch Star Wars and not interested in it anyway, but I choose a Yoda card as my avatar in honor of our great friend bobbym who has passed away. May his adventurous soul rest in peace at heaven.

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 26,118

Hi,

The solution #3906 is correct. Excellent, Monox D. I-Fly!

#3907. A bag contains 5 red, 8 green, and 7 white balls. One balls is drawn at random from the bag. What is the probability of getting a white ball or a green ball?

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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**Monox D. I-Fly****Member**- From: Indonesia
- Registered: 2015-12-02
- Posts: 1,269

Actually I never watch Star Wars and not interested in it anyway, but I choose a Yoda card as my avatar in honor of our great friend bobbym who has passed away. May his adventurous soul rest in peace at heaven.

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 26,118

Hi,

The solution #3907 is correct. Neat work, Monox D. I-Fly!

#3908. Tickets numbered from 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability of getting a ticket drawn which bears a number which is a multiple of 3?

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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**Monox D. I-Fly****Member**- From: Indonesia
- Registered: 2015-12-02
- Posts: 1,269

Actually I never watch Star Wars and not interested in it anyway, but I choose a Yoda card as my avatar in honor of our great friend bobbym who has passed away. May his adventurous soul rest in peace at heaven.

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 26,118

Hi,

The solution #3908 is correct. Neat work, Monox D. I-Fly!

#3909. Two coins are tossed simultaneously. What is the probability of getting at least one head?

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

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**Monox D. I-Fly****Member**- From: Indonesia
- Registered: 2015-12-02
- Posts: 1,269

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 26,118

Hi,

The solution #3909 is correct. Neat work, Monox D. I-Fly!

#3910. Two dice are rolled simultaneously. Find the probability of showing different faces.

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

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**Monox D. I-Fly****Member**- From: Indonesia
- Registered: 2015-12-02
- Posts: 1,269

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 26,118

Hi,

The solution #3910 is correct. Neat work, Monox D. I-Fly!

#3911. From the lerrers of the word 'MOBILE', a letter is selected. Find the probability of the letter being a vowel.

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

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**Monox D. I-Fly****Member**- From: Indonesia
- Registered: 2015-12-02
- Posts: 1,269

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 26,118

Hi,

The solution #3911 is correct. Good work, Monox D. I-Fly!

#3912. A two-digit number is chosen at random. Find the probability of the number being chosen is a multiple of 3.

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

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**Monox D. I-Fly****Member**- From: Indonesia
- Registered: 2015-12-02
- Posts: 1,269

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 26,118

Hi,

The solution #3912 is correct. Neat work, Monox D. I-Fly!

#3913. What is the probability of a leap-year having 52 Mondays?

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

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 26,118

Hi,

.

#3914. A card is drawn at random from a well shuffled deck of 52 cards. What is the probability of getting an Ace?

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

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**Monox D. I-Fly****Member**- From: Indonesia
- Registered: 2015-12-02
- Posts: 1,269

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 26,118

Hi,

The solution #3914 is correct. Good work, Monox D. I-Fly!

#3915. Find the value of

, if denote the complement or negation of an event E?Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**Monox D. I-Fly****Member**- From: Indonesia
- Registered: 2015-12-02
- Posts: 1,269

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 26,118

Hi,

The solution #3915 is correct. Excellent, Monox D. I-Fly!

#3916. One card is drawn from a pack of 52 cards, each of the cards being equally likely to be drawn. Find the probability of the card drawn being

(i) an ace

(ii) red

(iii) either red or king.

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

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**Monox D. I-Fly****Member**- From: Indonesia
- Registered: 2015-12-02
- Posts: 1,269

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 26,118

Hi,

The solution #3916 (i) and (ii) is correct. Neat work, Monox D. I-Fly!

.

#3917. One card is drawn from a pack of 52 cards, each of the cards being equally likely to be drawn. Find the probability of the card drawn being

(i) a red and a king

(ii) a face card.

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

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 26,118

Hi,

#3918. What is the probability of a number selected from the numbers 1, 2, 3, 4, ..., 25 is a prime number, when each of the given numbers is likely to be selected?

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

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 26,118

Hi,

#3919. One card is drawn from a pack of 52 cards, each of the 52 cards being equally likely to be drawn. Find the probability of the card being drawn is

(i) a face card

(ii) a red face card.

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

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 26,118

Hi,

.

#3920. One card is drawn from a pack of 52 cards, each of the 52 cards being equally likely to be drawn. Find the probability of the card being drawn is

(i) '2' of spades

(ii) '10' of black suit.

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

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