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Class 9 Maths Chapter 15 Probability Quiz 3 (25 MCQs)

Quiz Instructions

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1. There are 14 tiles with one letter from the word MATHEMATICIANS on each. Find the probability of randomly choosing the letter "M" .
2. If two coins are tossed simultaneously, then what is the probability of getting exactly two tails?
3. Tossing a coin 50 times is called an .....
4. A dice is thrown. The probability of getting 1 and 5 is:
5. Sam rolled a number cube 50 times. A '3' appeared 10 times. Find the probability of getting '3'.
6. A recent study of 200 nurses found that of 125 female nurses, 56 had bachelor's degrees:and of 75 male nurses, 34 had bachelor's degrees. If a nurse is selected at random, find the probability that the nurse is a female or has a bachelor degree.
7. A day in the year is randomly chosen. Given the day is in the month of December, what is the probability the day is the 25$^{th}$? (December has 31 total days.)
8. If P(E) = 0.38, then probability of event E, not occurring is:
9. Pablo chooses a colored marble from a mixed bag and writes down the color. Pablo leaves it out and then draws another.
10. A six sided die is rolled twice. What is the probability of getting a 6 on the first roll, then a number less than 5 on the second roll?
11. When a die is thrown, the probability of getting an odd number less than 4 is
12. If two events cannot occur simultaneously (at the same time), in a single trial they are said to be
13. Which formula do you use when two events are mutually exclusive?
14. A piggy bank contains hundred 50 p coins, fifty rs.1 coins, twenty rs.2 coins and ten rs.5 coins. If it is equally likely that one of the coins will fall out when the bank is turned upside down, what is the probability that the coin will be a rs.2 coin?
15. A box contains 5 purple marbles, 3 green marbles and 2 orange marbles. Draws are made without replacement. P(1st orange then green)
16. A number is chosen at random from 1 to 10. Find the probability of selecting a multiple of 2 or a multiple of 3.
17. The six faces of the dice are called equally likely if the dice is
18. An action which results in one or several outcomes is called .....
19. The sum of all probabilities equal to:
20. P(A) =.49P(A') =?
21. At a particular school with 200 male students, 58 play football, 40 play basketball, and 8 play both. What is the probability that a randomly selected male student plays neither sport?
22. A ten sided die is rolled.P (3 or 5)
23. A box contains 5 red marbles, 8 white marbles and 4 green marbles.One marble s taken out of the box random.What is the probability that the marble taken out will be not green
24. In a survey of 364 children aged 19-36 months, it was found that 91 liked to eat potato chips. If a child is selected at random, the probability that he/she does not like to eat potato chips is:
25. An unlikely chance event is closer to what number?
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