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VCE Stuff => VCE Mathematics => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Mathematical Methods CAS => Topic started by: nice! on October 16, 2016, 03:16:14 pm

Title: 2008 vcaa exam multiple choice q14 !!
Post by: nice! on October 16, 2016, 03:16:14 pm

Hey can someone help me with VCAA exam 2 multiple choice question 14???

Title: Re: 2008 vcaa exam multiple choice q14 !!
Post by: qazser on October 16, 2016, 05:02:40 pm

Quote from: nice! on October 16, 2016, 03:16:14 pm

Hey can someone help me with VCAA exam 2 multiple choice question 14???

Using CAS, solve (o.5)^n=0.0005

The output should be 10.986.
However, reading the question again, 10 flips will not be able to achieve the desired outcome(10 flips,prob  of 0.00097), hence 11 flips are needed to achieve a probability of less than 0.0005