Question

If P(A) = 3/5, n(S) = 40, then n(A) = ? Options : a) 3. b) 5. c) 200/3. d) 24​

Answer 1

Answer:

D 24

Step-by-step explanation:

P(A) =n(A) /n(S)

3/5= n(A) /40

Answer 2

Given that P(A) = 3/5, n(S) = 40, then n(A) = ?

Explanation:

• Option d)
• Probability of event A = no.of observations of A/ sum of total no.of observations
• P(A) = n(A)/n(S) = n(A)/40
• ⇒n(A) = P(A)/40 =(3/5)×40 24
• ∴n(A) = 40