Related Questions

Certain number of children were playing a game of football. There was a trial taking place on the field. In this trial the probability that a goal is scored is 2/5. The probability that a girl hits a goal is 7/10 whereas the probability that a boy hits a goal is 1/5. What will be the probability that not only a goal is hit but it is also hit by a boy?
A 14/50
B 7/50
C 2/5
D 2/25
Certain numbers of children were playing a game of football. There was a trial taking place on the field. In this trial the probability that a goal is scored is 2/5. The probability that a gril hits a goal is 7/10 whereas the probability than a boy hits a goal is 1/5. What will be the probability that not only a goal is hit but it is also hit by a boy?
A 14/50
B 7/50
C 2/5
D 2/25
Consider a company that assembles computers. The probability of a faulty assembly of any computer is p. The company therefore subjects each computer to a testing process. This testing process gives the correct result for any computer with a probability of q. What is the probability of a computer being declared faulty?
A pq + (1 - p) (1 - q)
B (1 - q)p
C (1 - p)q
D pq
The probability that a student will graduate with honors and get a good job is 0.09 whereas the probability that a student will graduate with honors is 0.1. What is the probability that a student will get a good job if she graduates with honors?
A 90%
B 9%
C 0.9%
D 18%
When tossed, a certain coin has equal probability of landing on either side. If the coin is tossed 3 times, what is the probability that it will land on the same side each time?
A 1/8
B 1/4
C 1/3
D 3/8
The probability of rolling any number of an wighted 6-sided die, with faces numbered 1 through 6, is directly proportional to the number rolled. What is the probability of getting 5, if the die is rolled only once?
A 1/6
B 5/6
C 5/16
D 5/21
The probability is 1/2 that a coin will turn up heads on any toss. If the coin is to be tossed three times, what is the probability that on at least one of the tosses the coin will turn up tails?
A 1/8
B 1/2
C 7/8
D None of these
The probability of rolling any number on a weight 6-sided die, with faces number 1 through 6, is directly proportional to the number rolled. What is the probability of getting 5, if the die is rolled only once?
A 1/6
B 5/6
C 5/16
D 5/21
A husband and wife appear in an interview for two vacancies in the same post. The probability of husband,s selection is 1/7 and that of wife,s is 1/5. What is the probability that none of them will be selected?
A 2/7
B 1/35
C 24/35
D 11/35
দুইজন লোক X ও Y চাকুরির জন্য একটি কোম্পানিতে আবেদন করেছে। যদি X ও Y এর নির্বাচিত হওয়ার সম্ভাবনা যথাক্রমে 2/5 ও 4/7 হয়, তাহলে তাদের উভয়ের নির্বাচিত হওয়ার সম্ভাবনা কত? (Two people X and Y have applied for a job in a company. The probability of selection of X and Yare 2/5 and 4/7. respectively. What is the probability of both of them getting the job?)
A 34/35
B 27/35
C 8/35
D 3/35

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