Find the area under the standard normal curve between:

(i) z1 5 21 and z2 5 1

(ii) z3 5 0 and z4 5 2

(b) The number of monthly ‘hits’ to a travel agency’s website is normally distributed with a mean of 10,000 and a standard deviation of 2,500.

Find the probability that the website will receive between 7,500 and 11,000 hits in any given month.

find the cost of your paper
Order now to get your homework done