Probability - Online Test
Q1. In a certain town , 40% persons have brown hair , 25% have brown eyes , and 15% have both. If a person selected at random has brown hair , the chance that a person selected at random with brown hair is with brown eyes
Answer : Option C
Explaination / Solution:
No Explaination.
Q2. The probability that a card drawn at random from a pack of 52 cards is a king or a heart is
Answer : Option C
Explaination / Solution:
No Explaination.
Q3. Three prizes are distributed among three persons at random. The chances that none of the persons gets all the prizes is
Answer : Option B
Explaination / Solution:
No Explaination.
Q4. The letters of the word ‘ MALENKOV ‘are arranged in all possible ways. The chance that there are exactly four letters between M and E is
Answer : Option D
Explaination / Solution:
No Explaination.
Q5. The letters of the word ‘ ORIENTAL ‘ are arranged in all possible ways . The chance that the consonants and vowels occur alternately is
Answer : Option C
Explaination / Solution:
No Explaination.
Q6. 8 coins are tossed at a time. The probability of getting atleast 6 heads up is
Answer : Option D
Explaination / Solution:
No Explaination.
Q7. There are 2 boxes. One box contains 3 white balls and 2 black balls. The other box contains 7 yellow balls and 3 black balls. If a box is selected at random and from it, a ball is drawn , the probability that the ball drawn is black is
Answer : Option D
Explaination / Solution:
No Explaination.
Q8. If A and B are two mutually exclusive events, then P (A + B) is equal to
Answer : Option C
Explaination / Solution:
No Explaination.
Q9. If and are two independent events, then P is equal to
Answer : Option B
Explaination / Solution:
No Explaination.
Q10. If E is an event, then 
is equal to
is equal to
Answer : Option D
Explaination / Solution:
No Explaination.
