Question

Give an exact answer based on the empirical rule for the question below. The price for a particular model of HD television is approximately a normal distribution. The mean price is 1400$ and the SD is $135. What is the approximate percentage of buyers who paid $1400 and 1535?

I don’t understand where some of the numbers are coming from.

Please look where I’m confused on my paper..

านุ00-1400 75 13S -0.8 15-os-urere are these scaily 34:137.

Answer 1

The answer given by you is correct, your problem is from where the numbers are coming, we use the z table for getting this values here we want p(z<1)-p(z<0) then we use z table to get this values.the z table attached here below for p(z<1) we see the value corresponing to 1 in first column and for p(z<0) we see value corresponding to 0 in first column. h