he demand for walnut pastries at Joanne's Bakery on Saturday mornings is N(30, 8). Joanne currently makes 36 walnut pastries for Saturday mornings. If four Saturday mornings are randomly selected, what is the probability that Joanne will have run out of walnut pastries on every one of the Satu

0.22663

Step-by-step explanation:

Given that:

N(30, 8)

Normal distribution :

Mean(m) = 30

Standard deviation (s) = 8

X = 36

To run out of pastries then demand is greater than 36

Zscore = (X - m) / s

Zscore = (36 - 30) / 8

Zscore = 0.75

P(Z > 0.75) = 1 - P(Z < 0.75)

P(Z < 0.75) = 0.77337

P(Z > 0.75) = 1 - 0.77337

= 0.22663

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