Ch 14 Probability

If P(A) = 7/9 then P(A’) = ____

• 1/9

• 2/9

• 3/9

• 9/4

If P(A) : P(A’) = 2:5 then P(A) = ____

• 7/2

• 2/7

• 5/7

• 7/5

IF P(A) - P(A’) = -0.4 then P(A’) = _____

• 0.6

• 0.2

• 0.3

• 0.7

If P(A) = x/2 and P(A’) = x/3 then P(A) = ____

• 5/6

• 6/5

• 3/5

• 2/5

If P(A) = x/3 and P(A’) = 2/5 then x = ___

• 5/9

• 9/5

• 3/5

• 5/3

Two friends born in year 2028. The probability that they don’t have same birthday is

• 1/366

• 1/365

• 364/365

• 365/366

The probability of month of April of a leap year having 5 Friday is ____

• 1/7

• 2/7

• 3/7

• 4/7

In a 80 market test of maths the probability of Mona scoring 80 out of 80 marks is ____

• 1/80

• 80/80

• 1/81

• 80/81

the probability of getting a defective shirt in a lot of 200 shirt is 0.035.find the number of good shirts

• 7

• 20

• 195

• 193

find the probability that a number selected at random from 1 to 100 is prime number.

• 1/2

• 3/4

• 1/7

• 1/4