Answer: 64%
Step-by-step explanation:
Given : The portion of shoppers at a supermarket who pay by credit card is 0.36
Then, the percent of shoppers at a supermarket who pay by credit card[tex]=0.36\times100=36\%[/tex] [we multiply 100 to a number to convert it into percent.]
Percent of shoppers do not pay by credit card + Percent of shoppers pay by credit card =100%
[∵ Sum of all probability of outcomes in event is 100%]
Then , Percent of shoppers do not pay by credit card
=100%- Percent of shoppers pay by credit card
= 100 %-36%= 64%
Hence, the percent of shoppers at the supermarket do not pay by credit card = 64%
