Advertisements
Advertisements
प्रश्न
The probability of getting a job for a person is `x/3`. If the probability of not getting the job is `2/3` then the value of x is
पर्याय
2
1
3
1.5
उत्तर
1
Explanation;
Hint:
Probability of getting a job = `x/3`
Probability of not getting a job = `1 - x/3`
`2/3 = 1 - x/3`
⇒ `x/3 = 1 - 2/3`
`x/3 = (3 - 2)/3`
⇒ `x/3 = 1/3`
⇒ x = 1
APPEARS IN
संबंधित प्रश्न
Write the sample space for tossing three coins using tree diagram
If A is an event of a random experiment such that `"P"("A"):"P"(bar"A")` = 17 : 15 and n(S) = 640 then find `"P"(bar"A")`
A coin is tossed thrice. What is the probability of getting two consecutive tails?
Two unbiased dice are rolled once. Find the probability of getting the sum as a prime number
Three fair coins are tossed together. Find the probability of getting all heads
A bag contains 5 red balls, 6 white balls, 7 green balls, 8 black balls. One ball is drawn at random from the bag. Find the probability that the ball drawn is neither white or black
In a box there are 20 non-defective and some defective bulbs. If the probability that a bulb selected at random from the box found to be defective is `3/8` then, find the number of defective bulbs
Two customers Priya and Amuthan are visiting a particular shop in the same week (Monday to Saturday). Each is equally likely to visit the shop on any one day as on another day. What is the probability that both will visit the shop on the same day?
Which of the following is incorrect?
A bag contains 5 white and some black balls. If the probability of drawing a black ball from the bag is twice the probability of drawing a white ball then find the number of black balls.
