Q52 Prep 3 Algebra Question Bank

a) If A and B are two events from a sample space, the event of occurrence of A only is:

(a) \( \vec{A} \)

(b) \( \vec{A} - \vec{B} \)

(c) \( \vec{A} \cap \vec{B} \)

(d) \( \vec{A} \cup \vec{B} \)

MR/Nasef.N

b) If A is an event from the sample space of a random experiment, then \( P(\vec{A}) = \) ......

(a) 1

(b) -1

(c) \( 1 - P(A) \)

(d) \( P(A) - 1 \)

MR/Nasef.N

c) If A ⊂ S of a random experiment, \( P(A) = \frac{1}{3} \), then \( P(\vec{A}) = \) ......

(a) \( -\frac{1}{3} \)

(b) zero

(c) \( \frac{1}{3} \)

(d) \( \frac{2}{3} \)