A letter is chosen at random from the word “ROSE”. Find the probability, that the letter chosen is a vowel.
A) 1/4
B) 3/4
C) 1/2
D) 2/5
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A coin is tossed 500 times and we get heads : 285 times and tails : 215 times When a coin is tossed at random , what is probability of getting (i) a h
Correct Answer - (i) 0.57 (ii) 0.43
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In a survey of 200 ladies , it was found that 142 like coffee , while 58 dislike it . Find the probility that a lady chosen at random (i) likes coffee
Correct Answer - (i) 0.71 (ii) 0.29
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It is known that a box of 800 electric bulbs contains 36 defective bulbs . One bulb is taken at random of the box. What is the probability that the bu
Correct Answer - `(191)/(200) `
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A bag contains 1 red and 3 white balls. Find the probability distribution of the number of red balls if 2 balls are drawn at random from the bag
Let X be the random variable defined as the number of red balls. Then X = 0, 1 P(X = 0) = \(\frac{3}{4}\times\frac{2}{3}=\frac{6}{12}=\frac{1}{2}\) P(X = 1) = \(\frac{1}{4}\times\frac{3}{3}+\frac{3}{4}\times\frac{1}{3}=\frac{6}{12}=\frac{1}{2}\) Probability Distribution Table: X 0 1 P(X) \(\frac{1}{2}\) \(\frac{1}{2}\)
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Two cards are drawn at random from a pack of 52 cards one-by-one without replacement. What is the probability of getting first card
The required probability = P((The first is a red jack card and The second is a jack card) or (The first is a red non-jack card and The second is...
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The word (atom) is derived from a Greek word “atomio” means …………….
Correct option is A) indivisible
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A letter is chosen at random from the word “ROSE”. Find the probability, that the letter chosen is a vowel.
Correct option is (C) 1/2 R & S are consonant and 0 & E are vowels in word ROSE. Total number of letters in ROSE is n(S) = 4 Total vowel letters in ROSE...
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The probability that random selected month to have 32 days
Correct option is (A) 0 A month have at most 31 days in a calendar year. \(\therefore\) There are no month which have 32 days. \(\therefore\) Favourable outcomes = 0 Total month = 12 \(\therefore\) Probability that random...
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The modal letter of the letters of the word “ASSESSMENTS”
Correct option is (C) \(\frac5{11}\) Total number of S's in "ASSESSMENTS" = 5, Total number of E's in "ASSESSMENTS" = 2, A, M, N & T are 1 time occur in word "ASSESSMENTS". \(\therefore\) Total letters in...
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A number is selected at random from first 50 natural numbers. Find the probability that it is a multiple of 3 and 4.
Total number of possible outcomes, n(S) = 50 Number of favorable outcomes, n(E) = 4 ∴ P(E) = \(\frac{n(E)}{n(S)}\)= \(\frac{4}{50}\) = \(\frac{2}{25}\)
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