Question

The unfair coin (p=Prob(head)=0.3, q=Prob(tail)=1-p=0.7) is tossed 100 times. Find the probability that number of heads...

The unfair coin (p=Prob(head)=0.3, q=Prob(tail)=1-p=0.7) is tossed 100 times. Find the probability that number of heads is between 45 to 50 (both inclusive)

a) Use direct calculation (binomial)

b) Use normal approximation

Using Ti-34 calculator

Equations/answer written out using

binomcdf(x,x,x)

Binompdf(x,x,x)

Invnorm

InvT

tcdf

If possible/needed to solve the equation

Math   Statistics-And-Probability   
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