Maharashtra State BoardHSC Science (Electronics) 11th
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HSC Science (Electronics) 11th - Maharashtra State Board Important Questions for Mathematics and Statistics

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Mathematics and Statistics
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A card from a pack of 52 playing cards is lost. From the remaining cards of the pack three cards are drawn at random (without replacement) and are found to be all spades. Find the probability of the lost card being a spade.

Appears in 3 question papers
Chapter: [0.019] Probability
Concept: Independent Events

Find matrices A and B, if `2"A" - "B" = [(6, -6, 0),(-4, 2, 1)] and "A" - 2"B" = [(3, 2, 8),(-2, 1, -7)]` 

Appears in 1 question paper
Chapter: [0.013999999999999999] Determinants and Matrices
Concept: Algebra of Matrices

An insurance agent insures lives of 5 men, all of the same age and in good health. The probability that a man of this age will survive the next 30 years is known to be 2/3 . Find the probability that in the next 30 years at most 3 men will survive.

Appears in 1 question paper
Chapter: [0.019] Probability
Concept: Conditional Probability

Suppose that 80% of all families own a television set. If 5 families are interviewed at  random, find the probability that
a. three families own a television set.
b. at least two families own a television set.

Appears in 1 question paper
Chapter: [0.019] Probability
Concept: Conditional Probability
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