the probability of getting a defective pen from a lot of 500 pens is 1/25. Find the number of defective pens in the lot
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P(E)=n(E)/n(s)....
1/25=n(e)/500......
n(E)=500/25.....
n(E)=20
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Probability = Favourable Observation / No . of Observation
So,
P(of getting Defective Pen) = No . of Defective Pen / Total No . of Pens
1 / 25 = No. of Defective Pen / 500
No . of Defective Pen = 500 / 25
No . of Defective Pen = 20
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So,
P(of getting Defective Pen) = No . of Defective Pen / Total No . of Pens
1 / 25 = No. of Defective Pen / 500
No . of Defective Pen = 500 / 25
No . of Defective Pen = 20
Hope U Understood
Mark This Brainliest if This Helped You
Thankx
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