Answer:
A : Per 100 people, cashier should expect 26 customer until he finds a costumer that makes a purchase.
B: The probability is 1/4
Step-by-step explanation:
The estimated chance of a customer making a purchase = 74%
So, if a TOTAL of 100 people visit the grocery store on any random day,
then 74 % of customers
= 74% of 100
= 74 people will make purchases.
⇒ Out of total 100 people visiting, 74 people will make a purchase.
So, the number of people NOT making a purchase = 100 - 74 = 26
⇒ Out of total 100 people visiting, 26 people will NOT make a purchase.
Also, 26 = 26% of 100
Part A :
So, in order to make a purchase, cashier should expect 26% of customers because the percentage of NOT purchasing is 26%.
Hence, per 100 people, cashier should expect 26 customer until he finds a costumer that makes a purchase.
Part B :
The percentage of customer making a purchase = 74%
The percentage of people NOT making a purchase = 26%
So, for every 3 customer making a purchase there is a 1 person NOT making a purchase.
So, the probability is 1/4
