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Start learning 50% faster. Sign in nowReplace incident with incidence. ‘incident means occurence’ whereas ‘incidence’ means frequency. Reducing the incidence of fatal or crippling disease calls for robust medical infrastructure, which governments can create quickly, if they have the will.
A box contains 6 red, 4 blue, 2 green and 4 yellow pens. If four pens are picked at random, what is the probability that one is green, two are blue and ...
There are (m + 4) red roses, (m + 11) white roses and ‘m’ pink roses in a bag. If the probability of picking a pink rose is 5/16, then find the valu...
A bag contains 6 balls of which 3 are red and 3 are black. They are drawn successively without replacement. What is the probability that colors are alt...
A student is required to answer 4 questions out of 12 questions in an English paper, which are divided into two sections of 6 questions each. If the stu...
The probability of selecting a rotten egg randomly from a basket of 600 eggs is 0.14. What is the number of rotten eggs in the basket?
A box contains 21 ribbons out of which [A] ribbons are white, and rest is green in colour. The probability of drawing a white ribbon and a green ribbon ...
A is trying to break a bulb by throwing balls at it. If he hits the bulb 5 times in every 7 throws and bulb breaks 3 times out of 15 hits, then find the...
Two dice are thrown simultaneously. Find the probability that sum of the numbers appeared on both the dice is at least 7.
A bag holds 'a' red bands and 5 green bands. If two bands are drawn sequentially at random without replacement, the probability that both selected bands...