In cricket,Rohit hits a century in $4$ innings out of $10$ innings. Find the probability that he did not hit a century.

  • A
    $0.2$
  • B
    $0.6$
  • C
    $0.4$
  • D
    $0.8$

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Similar Questions

Over the past $200$ working days,the number of defective parts produced by a machine is given in the following table:
Number of defective parts $0$ $1$ $2$ $3$ $4$ $5$ $6$ $7$ $8$ $9$ $10$ $11$ $12$ $13$
Days $50$ $32$ $22$ $18$ $12$ $12$ $10$ $10$ $10$ $8$ $6$ $6$ $2$ $2$

Determine the probability that tomorrow's output will have more than $13$ defective parts.

$A$ card is drawn at random from a well-shuffled pack of $52$ cards. The probability of that card being a picture card is ............. (in $/13$)

Two dice are thrown simultaneously $500$ times. Each time the sum of two numbers appearing on their tops is noted and recorded as given in the following table:
Sum Frequency
$2$ $14$
$3$ $30$
$4$ $42$
$5$ $55$
$6$ $72$
$7$ $75$
$8$ $70$
$9$ $53$
$10$ $46$
$11$ $28$
$12$ $15$

If the dice are thrown once more,what is the probability of getting a sum less than or equal to $5$?

The marks obtained by a student in five tests are as follows:
Test Number Marks obtained
$1$ $62$
$2$ $72$
$3$ $78$
$4$ $91$
$5$ $85$

If one of the tests is chosen at random,find the probability that the student scored $(1)$ more than $90$ marks and $(2)$ between $70$ and $80$ marks in that test.

$A$ company selected $4000$ households at random and surveyed them to find out a relationship between income level and the number of television sets in a home. The information so obtained is listed in the following table:
Monthly income (in Rs) $0$ Televisions $1$ Television $2$ Televisions Above $2$ Televisions
$< 10000$ $20$ $80$ $10$ $0$
$10000-14999$ $10$ $240$ $60$ $0$
$15000-19999$ $0$ $380$ $120$ $30$
$20000-24999$ $0$ $520$ $370$ $80$
$25000$ and above $0$ $1100$ $760$ $220$

Find the probability of a household earning $Rs. 25000$ and more per month and owning $2$ televisions.

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