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If p and q are chosen randomly from the set `{1,2,3,4,5,6,7,8,9, 10}` with replacement, determine the probability that the roots of the equation `x^2+p x+q=0` are real.

A

0.38

B

0.03

C

0.62

D

0.89

Text Solution

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The correct Answer is:
(c)
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ARIHANT MATHS-PROBABILITY-Exercise (Passage Based Questions)
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  2. If p and q are chosen randomly from the set {1, 2, ,3 ,4, 5, ,6, 7, 8,...

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  3. If pa n dq are chosen randomly from the set {1,2,3,4,5,6,7,8,9, 10} wi...

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  4. A chess game between Kamsky and Anand is won by whoever first wins 2 o...

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  5. A chess game between two grandmasters X and Y is won by whoever first ...

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  6. A chess game between two grandmasters X and Y is won by whoever first ...

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  7. There are n students in a class. Ler P(Elambda) be the probability tha...

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  8. There are n students in a class. Ler P(Elambda) be the probability tha...

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  9. There are n students in a class. Ler P(Elambda) be the probability tha...

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  10. A cube having all of its sides painted is cut by two horizontal, two v...

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  11. A cube having all of its sides painted is cut to be two horizontal, tw...

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  12. A cube having all of its sides painted is cut to be two horizontal, tw...

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  13. A JEE aspirant estimates that she will be successful with an 80 percen...

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  14. A JEE aspirant estimates that she will be successful with an 80 percen...

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  15. A JEE aspirant estimates that she will be successful with an 80 percen...

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  16. Suppose E1, E2 and E3 be three mutually exclusive events such that P(E...

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  17. Suppose E1, E2 and E3 be three mutually exclusive events such that P(E...

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  18. Suppose E1, E2 and E3 be three mutually exclusive events such that P(E...

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  19. Let A = {1, 2, 3}, B = {2, 4} and R = {(1, 2), (2, 2), (2, 4), (3, 4)}...

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  20. Let A={1, ,2, 3} and B={-2, -1, 0, 1, 2,3}. The probability of incre...

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