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Practice Sheet-Probability 10th

1. A document containing 10 practice probability questions was provided. The questions cover topics like calculating probabilities of drawing cards from a deck, letters from words, balls from an urn, and winning games. 2. The document tests understanding of basic probability concepts such as finding individual probabilities, adding probabilities, and knowing which values probabilities can and cannot take. 3. An answer key is provided with the correct response for each of the 10 questions.

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msatija2007
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274 views2 pages

Practice Sheet-Probability 10th

1. A document containing 10 practice probability questions was provided. The questions cover topics like calculating probabilities of drawing cards from a deck, letters from words, balls from an urn, and winning games. 2. The document tests understanding of basic probability concepts such as finding individual probabilities, adding probabilities, and knowing which values probabilities can and cannot take. 3. An answer key is provided with the correct response for each of the 10 questions.

Uploaded by

msatija2007
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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PROBABILITY

Class-10th
PRACTICE SHEET
1. One card is drawn from a well shuffled deck of 52 6. An urn contains 6 blue and 'a' green balls. If the
cards. probability of drawing a green ball is double that of
I. The probability that the card will be diamond, drawing a blue ball, then 'a' is equal to
is 1/2. (A) 6 (B) 18
II. The probability of an ace of heart is 1/52. (C) 24 (D) 12
III. The probability of not a heart is 3/4.
IV. The probability of king or queen is 1/26. 7. If in a lottery, there are 5 prizes and 20 blanks, then
Which of the statement(s) is/are true? the probability of getting a prize is
(A) I and II 2 4
(A) (B)
(B) II and III 5 5
(C) III and IV 1
(D) None of these (C) (D) 1
5

2. If a letter is chosen at random from the letter of 8. For an event E,P ( E ) + P(E) = q, then
English alphabet, then the probability that it is a
(A) 0  q  1 (B) 0  q  1
letter of the word 'DELHI' is
1 1 (C) 0  q  1 (D) None of these
(A) (B)
5 26
5 21 9. Three - digit numbers formed by using digits 0, 1,
(C) (D) 2 and 5 (without repetition) are written on different
26 26
slips with distinct number on each slip, and put in
3. Which of the following cannot be the probability of a bowl. One slip is drawn at random from the bowl.
an event? The probability that the slip bears a number
(A) 2/3 (B) –1/5 divisible by 5 is
(C) 15% (D) 0.7 5 4
(A) (B)
9 9
4. The probability of getting a number greater than 2 2 1
(C) (D)
in throwing a die is 3 3
2 1
(A) (B)
3 3 10. Assertion: The probability of winning a game is
4 1 0.4, then the probability of losing it is 0.6.
(C) (D) Reason: P(E) + P(not E) = 1
3 4
Show Answer
5. A single letter is selected at random from the word (A) Both Assertion (A) & Reason (R) are true, and
"PROBABILITY". The probability that the Reason (R) is the correct explanation of
selected letter is a vowel is Assertion (A).
2 3 (B) Both Assertion (A) & Reason (R) are true, but
(A) (B) Reason (R) is not the correct explanation of
11 11
Assertion (A).
4
(C) (D) 0 (C) Assertion (A) is true but Reason (R) is false.
11
(D) Assertion (A) is false but Reason (R) is true.

[1]
ANSWER KEY
1. (B) 6. (D)
2. (C) 7. (C)
3. (B) 8. (D)
4. (A) 9. (A)
5. (C) 10. (A)

[2]

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