MTH 261-FA17 (CRN 4949 Test:Chapter 4 Test This Question 1 pt imeRemaining 00-40

Question

MTH 261-FA17 (CRN 4949 Test:Chapter 4 Test This Question 1 pt imeRemaining 00-4022 Subrnit Test This Test: 20 pts possible Fnd the indicated probabilises using he gecmeric distibution, the Poisson distribution, or the Sinonial datibution Then determie Saty nine percent of parents would give so cable television to have heir childs aducation paid or Round to three decimal places as reeded) Hound to three decimal places as needed) Round to three decimal places as needed ) C. The event Poi leas"vee-unnaal Cick to solect your arewer 5 6

Explanation / Answer

Ans:

Binomial distribution with n=5,p=0.69

use above table or calculate as given below:

a)P(x=3)=5C3*0.693*(1-0.69)2=0.3157

b)P(x<4)=1-P(x=4)-P(x=5)=1-5C4*0.694*0.311-5C5*0.695*0.310

=1-0.3513-0.1564

=0.4923

c)P(x>=3)=5C3*0.693*0.312+5C4*0.694*0.311+5C5*0.695*0.310

  =0.3157+0.3513+0.1564

=0.8234

As,all prob. values are >0.05,hence none of the events are unusual.

(option D is correct)

x BINOMDIST(x,5,0.69,false) 0 0.0029 1 0.0319 2 0.1418 3 0.3157 4 0.3513 5 0.1564

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