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Worksheetschapter 15 Probabilitiy
Total questions: 20
Worksheet time: 15mins
if an event occurs surely , its probability is.......
0
1
2
4
if an event never occurs , its probability is....
3
2
1
0
The probability of the month of january having 5 sunday is....
1/7
2/7
3/7
4/7
Among the followings ,......cannot be the probability of an event.
2/3
0.7
0.15
1.5
Two friends were born in the year 2000. The probability that they have the same birth date is.....
1/2000
2/365
1/365
1/366
A letter is chosen at random from the english alphabet. Then, the probability that the chosen letter is a vowel is.....
1/26
3/26
5/26
1/52
The probability of getting a prime number is a single throw of a die is ......
1/2
1/6
1/3
3/4
The probability of a leap year having 53 fridays is ......
1/7
2/7
3/7
4/7
A card is drawn at random from a well shuffled deck of 52 playing cards . The probability of the drawn card being a black face card is .....
1/26
3/26
1/52
3/52
One letter is chosen randomly from the word PROBABILITY . The probability of thatbletter being a vowel is ......... .
7/11
6/11
5/11
4/11
In one thoysand lottery tickerts , there are 50 prizes to be given . if Manish buys 1 ticket, probability of him winning a prize is ......
1/50
1/1000
1/100
1/20
A digit is randomly taken from a logarithmic table. Then the probability of that digit being 0 to 9 is ........ .
2/5
1/5
3/5
4/5
The probability of getting a defective shirt in a lot of 400 shirts is 0.035. Find the number of defective shirts.
12
13
14
15
Find the probability that a number selected at random from 1 to 100 is a prime number.
1/2
2/3
1/4
1/8
Find the probability of scoring 35 marks in a 50-mark test.
1/51
2/51
3/51
4/51
A girl calculates that the ptobability her winning the first prize in a lottery is 0.08. If 6000 tickets of the lottery are sold, how many tickets has she bought.
280
380
480
580
The probability of an event is greater than or equal to...... and less than or equal to....... .
0,0
0,1
1,0
1,1
The sum of probabilities of all elementary events is 1.
True
False
The probability of the Sun rising in the West is -1.
True
False
The probability of getting 51 marks in 100 marks examinatuon is 1/101.
True
False
