(d) Would it be unusual if more than 7 of them weigh more than 20 pounds?

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Chapter 9
10) Making sure that the
2) A public health organization reports that 40%of baby boys 6-8 months old in
States weigh more than 20 pounds. A sample of 10 babies is studied. Round
to three decimal places.
(a) What is the probability that exactly 4 of them weigh more than 20 pounds?
[0!
P(21)
4! (10-4) (6.10)4 (1-6.4²
मे 201251
(b) What is the probability that more than 4 weigh more than 20 pounds?
=1- (0.0064 0₁ odot 0:121+ 0.215+ 0.25
= 16.633 2 6.367
(c) What is the probability that fewer than 3 weigh more than 20 pounds?
6.606+ 0.040 + 0.121
こ 0.167
(d) Would it be unusual if more than 7 of them weigh more than 20 pounds?
312318AT 3
ROTAJUDIA
91913zib nos
rcon) + (SS=
Transcribed Image Text:Chapter 9 10) Making sure that the 2) A public health organization reports that 40%of baby boys 6-8 months old in States weigh more than 20 pounds. A sample of 10 babies is studied. Round to three decimal places. (a) What is the probability that exactly 4 of them weigh more than 20 pounds? [0! P(21) 4! (10-4) (6.10)4 (1-6.4² मे 201251 (b) What is the probability that more than 4 weigh more than 20 pounds? =1- (0.0064 0₁ odot 0:121+ 0.215+ 0.25 = 16.633 2 6.367 (c) What is the probability that fewer than 3 weigh more than 20 pounds? 6.606+ 0.040 + 0.121 こ 0.167 (d) Would it be unusual if more than 7 of them weigh more than 20 pounds? 312318AT 3 ROTAJUDIA 91913zib nos rcon) + (SS=
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