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Total number of apples in the heap = n(S) = 600 Let E be the event of selecting a rotten apple from the heap. Number of outcomes favourable to E = n(E) P(E) = n(E)/n(S) 0.14 = n(E)/600 ⇒ n(E) = 600 × 0.14 ⇒ n(E) = 84 Therefore, the number of rotten apples in the heap = 84
If the standard deviation of a population is 5.5, what would be the population variance?
If p = q + 2, where q is the product of six consecutive positive integers, then which of the following is/are true?
a. p is a perfect cube
Mean of a grouped data calculated using direct method, assumed mean method or step deviation method:
If the sum of n numbers in the GP 3, 6, 12, ... is 765 then n is?
The median 0f the given data will be 32, 25,33,27, 35, 29, and 30
If the angular diameter of the sun is 20, how far from the eye a coin of radius 3.3 cm be kept to hide the sun?
‘479385A267’ is ten-digit number which is divisible by 9, what is the value of ‘A’?
The sum to n terms of the series 1 + 1 + 3 + 1 + 3 + 5 + 1 + 3 + 5 + 7 …………………… is
The interest earned when a sum is invested at simple interest of 25% p.a., for 3 years, is Rs. 1875. What will be the total amount received after 2 year...
In an A.P a9 = 40, then find sum of first 17 terms of that A.P.