Advertisements
Advertisements
प्रश्न
Numbers 1 to 10 are written on ten separate slips (one number on one slip), kept in a box and mixed well. One slip is chosen from the box without looking into it. What is the probability of.
- Getting a number 6?
- Getting a number less than 6?
- Getting a number greater than 6?
- Getting a 1-digit number?
Advertisements
उत्तर
i) There are 10 slips in the box. However, 6 is written only on 1 slip.
Probability of getting a number 6 = `1/10`
ii) The numbers less than 6 are 1, 2, 3, 4, 5.
Probability of getting a number less than 6 = `5/10 = 1/2`
iii) The numbers greater than 6 are 7, 8, 9, 10.
Probability of getting a number greater than 6 = `4/10 = 2/5`
iv) There are 9 numbers which are single digit numbers.
1, 2, 3, 4, 5, 6, 7, 8, 9
Probability of getting a single digit number = `9/10`
संबंधित प्रश्न
Tell whether the given is certain to happen, impossible, can happen but not certain.
A tossed coin will land heads up.
A box contains pairs of socks of two colours (black and white). I have picked out a white sock. I pick out one more with my eyes closed. What is the probability that it will make a pair?
In a simultaneous throw of a pair of dice, find the probability of getting:
an even number on one and a multiple of 3 on the other
In a simultaneous throw of a pair of dice, find the probability of getting:
a number other than 5 on any dice.
A card is drawn at random from a pack of 52 cards. Find the probability that the card drawn is:
other than an ace
A card is drawn at random from a pack of 52 cards. Find the probability that the card drawn is:
jack
A bag contains 3 red balls, 5 black balls and 4 white balls. A ball is drawn at random from the bag. What is the probability that the ball drawn is:
not red?
Following cards are put facing down:
\[\boxed{\text{A}}\] \[\boxed{\text{E}}\] \[\boxed{\text{I}}\] \[\boxed{\text{O}}\] \[\boxed{\text{U}}\]
What is the chance of drawing out
- a vowel
- a card marked U
- A or I
- a consonant
Classify the following events:
Getting a number less than 1 on throwing a die.
Classify the following events:
Today moon will not revolve around the earth.
