The graph illustrates a normal distribution for the prices paid for a particular

Question

The graph illustrates a normal distribution for the prices paid for a particular model of HD television. The mean price paid is $1800 and the standard deviation is $135 1395 1530 1665 1800 1935 2070 2205 Distribution of Prices What is the approximate percentage of buyers who paid between $1665 and $1935 What is the approximate percentage of buyers who paid between $1800 and $20701 What is the approximate percentage of buyers who paid between $1800 and $2205? us the approximate percentage of buyers who paid less than $13957 What is the approximate percentage of buyers who paid between $1500 and $19357 What ss the approximate percentage of bayers who paid less tham $1530 Get belp Video Video DOLL F8 5 6 8 9

Explanation / Answer

as z score =(X-mean)/std deviaition

1)P(1665<X<1935)=P(-1<Z<1)=68.26%

2) P(1800<X<2070)=P(0<Z<2)=47.72%

3) P(1800<X<2205)=P(0<Z<3)=49.87%
4)

P(X<1395)=P(Z<-3)=0.13%

5)

P(1800<X<1935)=P(0<Z<1)=34.13%

6)P(X<1530)=P(Z<-2)=2.28%

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