A large retail store gathered data on the method of payment and the purchase price category for each item sold. The contingency table below summarises the data:
Method of Payment |
||||
Purchase Price Category |
Cash (A1) |
Credit Card (A2) |
Debit Card (A3) |
Total |
$100 or less (B1) |
40 |
30 |
20 |
90 |
More than $100 (B2) |
20 |
160 |
30 |
210 |
Total |
60 |
190 |
50 |
300 |
What is the probability that a randomly selected purchase is priced at more than $100 or is bought NOT using cash (two decimal places)?
Total = 300
More than $100 or not cash = 210 + 30 + 20 = 260
P(more than $100 or not cash) = 260/300 = 0.87 (rounded)
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DEAR STUDENT,
IF YOU HAVE ANY QUERY ASK ME IN THE COMMENT BOX,I AM HERE TO HELPS YOU.PLEASE GIVE ME POSITIVE RATINGS
*****************THANK YOU***************
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