The number a, b are chosen from the set`(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)` with replacement. Probability that a devides b is `lambda`, then `(4000 lambda)/27`is:

Two numbers are chosen from {1, 2, 3, 4, 5, 6, 7, 8} one after another without replacement. Then the probability that

Two numbers are chosen from {1, 2, 3, 4, 5, 6, 7, 8} one after another without replacement. Then the probability that

If p and q are chosen randomly from the set {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} with replacement. Find the probability that the roots of the equation x^(2) + px + q = 0 are real.

If P and Q are chosen-randomly from the set { 1, 2, 3, 4, 5, 6. 7, 8,9,10}, with replacement, determine the probability that the roots of the equation x^2 + px + q = 0 are real.

If p and q are chosen at random from the set {1,2,3,4,5,6,7,8,9,10} with replacement. Find the probability that the roots of x^(2)+px+q=0 are imaginary.

Two numbers a ,b are chosen from the set of integers 1, ,2 3, ..., 39. Then probability that the equation 7a-9b=0 is satisfied is

Two numbers a and b are chosen at random from the set {1,2,3,4, . . .,0} with replacement. The probability that the equation x^(2)+sqrt(2)(a-b)x+b=0 has

If p and q are chosen randomly from the set {1,2,3,4,5,6,7,8,9, 10} with replacement, determine the probability that the roots of the equation x^2+p x+q=0 are real.

If p and q are chosen randomly from the set {1,2,3,4,5,6,7,8,9, 10} with replacement, determine the probability that the roots of the equation x^2+p x+q=0 are real.