State a single multiple linear regression model that defines straight-line models relating Y = 5-year post surgical change in refractive error (diopters) to X1 = baseline refractive error for both males and females. Be sure to define all terms.

the total estimated nappy use.=10,500,000

step-by-step explanation:

given that on an average the average baby uses 3528 napkins.

in a particular year 2014, the number of births were 299697 in new south wales.

rounding off the number of births to the nearest hundred thousand we have

no of birtsh = 300000

also rounding off the average usage to nearst thousand we get

average use of a baby = 3500

hence total number of nappy estimated to be used = 3500x300000

= 10,500,000

answer is 10,500,000 nappies

they would have to work 32 hours.

is the anwser b. (-13)?