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Find out the correct answer out of the options given against each questions : If the two regression lines are mutually perpendicular to each other, then r is equal to

A

1

B

`+-1`

C

1

D

0

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UNITED BOOK HOUSE-HIGHER SECONDARY EXAMINATION 2016-Exercise
  1. Find out the correct answer out of the options given against each ques...

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  2. Find out the correct answer out of the options given against each ques...

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  3. Find out the correct answer out of the options given against each ques...

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  4. Find out the correct answer out of the options given against each ques...

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  5. Find out the correct answer out of the options given against each ques...

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  6. Find out the correct answer out of the options given against each ques...

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  7. Find out the correct answer out of the options given against each ques...

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  8. Answer the following questions: Write down two properties of distribut...

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  9. Answer the following questions: Let X be a continuous random variable ...

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  10. Answer the following questions: Let X and Y be two random variable whi...

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  11. Answer the following questions: If two modes of a Poisson distribution...

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  12. Answer the following questions: What is meant by bias?

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  13. Answer the following questions: What is meant by BLUE?

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  14. Answer the following questions : Write down two demerits of determinin...

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  15. Answer the following questions: What is product control in statistical...

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  16. Answer the following questions: What is meant by 'assignable causes of...

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  17. Answer the following questions in short: When mean and mode of binomia...

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  18. Answer the following questions : Show that Normal distribution is symm...

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  19. Answer the following questions in short: Find the maximum value of the...

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  20. Answer the following questions in short: Show that if n numbers are dr...

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