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Chapter 13: Q. 50 (page 866)

IfP(B)=0.30,P(A鈭�B)=0.65andP(A鈭�B)=0.15,findP(A)

Short Answer

Expert verified

The probability is0.50

Step by step solution

01

Step 1. Given Information  

The given data isP(B)=0.30,P(A鈭�B)=0.65andP(A鈭�B)=0.15

02

Step 2. Calculation

Substitute the values in the formula to find the required value,

P(A鈭�B)=P(A)+P(B)-P(A鈭�B)0.65=P(A)+0.30-0.15P(A)=0.65+0.15-0.30P(A)=0.50

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Most popular questions from this chapter

A(n) _____________ is an ordered arrangement of robjects chosen from nobjects.

The _______ of A with B consists of all elements in both A and B.

Find the probability of the indicated event if P(A)=0.25andP(B)=0.45

P(A鈭�B)ifP(A鈭�B)=0.6

An urn contains 7 white balls and 3 red balls. Three balls are selected. In how many ways can the 3 balls be drawn from the total of 10 balls:
(a) If 2 balls are white and 1 is red?

(b) If all 3 balls are white?

(c) If all 3 balls are red?

Use the formula C(n,r)=n!(n-r)!r!to find the value of each combination.

C(6,2)
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