Maharashtra State BoardHSC Arts 12th Board Exam
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The following is the c.d.f. of r.v. X x -3 -2 -1 0 1 2 3 4 F(X) 0.1 0.3 0.5 0.65 0.75 0.85 0.9 1 P (–1 ≤ X ≤ 2) - Mathematics and Statistics

Sum

The following is the c.d.f. of r.v. X

x -3 -2 -1 0 1 2 3 4
F(X) 0.1 0.3 0.5 0.65 0.75 0.85 0.9

*1

P (–1 ≤ X ≤ 2)

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Solution

P (–1 ≤ X ≤ 2)

=P(X= -1) +P(X=0)+ P(X = 0)+P(X = 2)

= 0.2 + 0.15 + 0.1 + 0.1  = 0.55  

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APPEARS IN

Balbharati Mathematics and Statistics 2 (Arts and Science) 12th Standard HSC Maharashtra State Board
Chapter 7 Probability Distributions
Miscellaneous Exercise | Q 9.2 | Page 244
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