For the events A and B in a sample space , we know that P(A) = (1 + ????)3, P(B) = 1 ????2 for

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For the events A and B in a sample space Ω, we know that P(A) = (1 + ????)∕3, P(B) = 1 − ????2 for some real number ????. The admissible range of values for ???? is

(a) ???? ≥0

(b) 0 ≤ ???? ≤1

(c) −1 ≤ ???? ≤ 1

(d) 0 ≤ ???? ≤ 2∕3

(e) −1∕3 ≤ ???? ≤ 2∕3.