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Can two mutually exclusive events with p...

Can two mutually exclusive events with positive probabilities be independent ? Give reasons.

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  • Model Test Set - 9

    UNITED BOOK HOUSE|Exercise Exercise |45 Videos
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Let A and B be two events such that p( bar (AuuB))=1/6, p(AnnB)=1/4 and p( bar A)=1/4 , where bar A stands for the complement of the event A. Then the events A and B are (1) mutually exclusive and independent (2) equally likely but not independent (3) independent but not equally likely (4) independent and equally likely

Statement-I : If (1)/(5)(1+5p), (1)/(3)(1+2p), (1)/(3)(1-p) and (1)/(5)(1-3p) are probabilities of four mutually exclusive events, then p can take infinite number of values. Statement-II : If A, B, C and D are four mutually exclusive events, then P(A), P(B), P(C ), P(D) ge 0 and P(A) +P(B)+P(C )+P(D ) le 1.

Suppose A and B are two events with P(A) = 0.5 and P(AuuB)=0.8LetP(B)=p if A and B are mutually exclusive and P(B)=q if A and B are independent events, then value of q/p is ____.

If A ,B ,C be three mutually independent events, then Aa n dBuuC are also independent events. Statement 2: Two events Aa n dB are independent if and only if P(AnnB)=P(A)P(B)dot

A,B,C and D are four mutually exclusive and exhuastive events. If the odds against the events B,C and D are 7 : 2 , 7 : 5 , and 13:5 respectively, find the odds in favour of the event A.

A and B are two events, not mutually exclusive, connected with a random experiment E. if P(A) = (1)/(4), P(B) = (2)/(5) and P(A cap B) = (1)/(2) , Find the values of the following probabilites : P(A cup B)

UNITED BOOK HOUSE-Model Test Set -3-Exercise
  1. If P(A + B) = 7/12 and P(A) = 1/3 for two independent events A and B, ...

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  2. If P(A - B) = 1/3, P(A) =1/2 and P(B)= 1/3 , calculate the probability...

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  3. Can two mutually exclusive events with positive probabilities be indep...

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  4. For three values a, (a+b)/2 and b(> a) find the value of range/sd.

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  5. What is coefficient of variation? State its uses.

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  6. What are the principal characteristics of an ideal average?

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  7. Suppose the least value (5) of a set of 50 values is changed to 4. Wha...

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  8. Find the condition that the equation x^3 - px^2 + qx -x = 0 should hav...

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  9. Find the remainder when x^5+ 5x^4 + x^3 + 5x^2 + 2x + 11 is divided by...

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  10. Write a short note on interpolation.

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  11. State Fermat’s theorem. Also prove that /\log f(x) = log [1 +(/\ f(x))...

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  12. Show that P(B)>0, then P(A1 cup A2|B) = P(A1|B) + P(A2|B)-P(A1 cap A2|...

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  13. Supposing P(A cap B)>0, show that P(B cap C|A)=P(B|A)P(C|A cap B).

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  14. Ten telegrams are distributed at randam over 15 communication channels...

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  15. Write down uses of index numbers.

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  16. Write a short note on ‘measures of dispersion’.

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  17. Write a general formula expressing central moments in terms of raw mom...

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  18. The first of two urns contains 3 white and 2 black balls and 2 red bal...

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  19. The first of two urns contains 3 white and 2 black balls and 2 red bal...

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  20. A and B alternatively toss a fair coin. The first once to throw a head...

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