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# S2 help

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1. Can someone explain part d. Why cant you just use the binomial table. I get the fact that you can approximate using normal butisnt binomial tables quicker?

http://m.imgur.com/xkANuFV,bQuLCIQ
2. (Original post by Super199)
Can someone explain part d. Why cant you just use the binomial table. I get the fact that you can approximate using normal butisnt binomial tables quicker?

http://m.imgur.com/xkANuFV,bQuLCIQ
If you have the Binomial tables for those values of n,p, then yes it would be quicker, BUT the question tells you to use an approximation; so I suspect it's testing whether you can do the approximation process.

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