Random Experiment

Q.

A dice is thrown twice. What is the probability that the same number will come up either time ?

1. 
2. 
3. 
4. 

Q.

A has $3$ shares in a lottery containing $3$ prizes and $9$ blanks, B has $2$ shares in a lottery containing $2$ prizes and $6$ blanks. Compare their chances of success.

Q. A number is chosen from 1 to 15, find the probability that the chosen number is a prime number:

1. $\frac{2}{5}$
2. $\frac{3}{5}$
3. $\frac{4}{5}$
4. $1$

Q.

A divisor of 1200 is selected at random. Find the probability that it is even.

1. $\frac{4}{5}$

2. $\frac{3}{5}$

3. $\frac{3}{4}$

4. $\frac{12}{13}$

Q. When we pick a fruit from the basket, the total number of possbilities of getting a different fruit is .

1. 2
2. 1
3. 3

Q. The event of getting an even number when a dice is rolled is

1. certain event
2. equally likely event
3. impossible event

Q.

One cannot predetermine the outcome of a random experiment.

1. True

2. False

Q.

Cards bearing numbers 3 to 20 are placed in a bag and mixed thoroughly. A card is taken out from the bag at random. What is the probability that the number on the card taken out is an even number ?

1. $1$
2. $\frac{4}{5}$
3. $\frac{1}{2}$
4. $\frac{2}{3}$

Q.

What are the set of odd numbers on a die?

1. 1, 3, and 5

2. 1 and 3

3. 1 and 5

4. 1, 2, 3, 4, 5, and 6

Q. Numbers from 1 to 20 are written on 20 separate slips. The slips are put into a box and mixed thoroughly. One slip is drawn from the box randomly. What is the probability of drawing a prime number?

Q. The event of getting number 7 when a die is rolled is ___ event

1. Unlikely event
2. Impossible event
3. Certain event
4. Likely event

Q. The possibility of pulling a yellow ball pulled from a basket of 5 white and 5 blue balls is .

1. 1
2. 0
3. 0.5
4. 0.20

Q.

numbers 1-20 were writtenon chits of paper and dropped in box what is the probability of

a-choosing muliples of 10

b-choosing an even number

c-choosing an odd prime number

d-choosing a factor of 6

Q. An activity which gives a result is called an __________.

1. Probability
2. Experiment
3. None of the above
4. Event