Yahoo Answers: Answers and Comments for Normal distribution? [數學]
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From alfred
zhHantHK
Sun, 23 Apr 2017 15:52:03 +0000
3
Yahoo Answers: Answers and Comments for Normal distribution? [數學]
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https://hk.answers.yahoo.com/question/index?qid=20170423155203AAtzD5I
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From Paul Liao: Use the Normal Distribution Calculator online ...
https://hk.answers.yahoo.com/question/index?qid=20170423155203AAtzD5I
https://hk.answers.yahoo.com/question/index?qid=20170423155203AAtzD5I
Mon, 24 Apr 2017 06:39:13 +0000
Use the Normal Distribution Calculator online as shown below
(a) P(X <= 2.4).
=P(Z<=(2.41)/8)
=P(Z<=0.175)
=0.56946
(b) P(X <= 2.1).
=P(Z<=(2.11)/8)
=P(Z<=0.1375)
=0.55468
(c) Hence find P(2.1 <= X <= 2.4)
P(X <=  2.1)=0.34919
P2.1 <= X <= 2.4)=P(X <= 2.4)  P(X <=  2.1)=0.569460.34919=0.22027 .....Ans