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The mean of 10 numbers is 7 . If each nu...

The mean of 10 numbers is 7 . If each number is multiplied by 1 then the mean of new set of numbers is

A

82

B

7

C

8

D

4

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MTG IIT JEE FOUNDATION-DATA HANDLING-Exercise (Level - 1) M.C.Q
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  2. If the median of (x)/(5), x,(x)/(4),(x)/(2) and (x)/(3) (where x gt 0...

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  3. The mean of 10 numbers is 7 . If each number is multiplied by 1 then t...

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  4. The probability of the event ''a head is obtained on tossing a coin''...

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  5. In a class , there are 24 boys and 12 girls. If one child is absent t...

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  6. A box contains 10 balls which are numbered 0 to 9. If one ball is draw...

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  7. A bag contains red, white and blue pencils . The probability of selec...

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  8. A latter is chosen at random from the word 'MATHEMATICS' .The probabil...

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  9. A box contains 50 coloured balls, What is the total number of white ba...

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  10. Garima, spins a spinner that is split into 8 equal sections. The s...

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  12. The king, queen and jack of hearts are removed from a deck of 52 playi...

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  13. What is the probability of getting a black king from a pack of 52 ca...

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  14. The data given below shows the time (in minutes) taken by nine student...

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  15. Soni has digit cards 1, 4 and 7 . She makes 2 - digit numbers using...

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  16. Twelve sided dice is used in adventure games . They are marked with ...

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  17. A card is drawn from a pack of 52 cards. What is the probability that...

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  18. The mean of the first ten natural numbers is

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  19. The probability of getting a number less than or equal to 6 when a ...

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  20. The mean of 5 observations is 14. If one of the observations is wrong...

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