Mathematics, 24.03.2021 17:50, irosser215

1. When opening a bank account with a credit card, you will be asked to create a 4-digit PIN number for debit transactions. From how many possible PIN numbers can you choose?
Explain your reasoning. (5 points)
2. The useful life of a radial tire is normally distributed with a mean of 80,000 miles and a
standard deviation of 5000 miles. A small tire company produces 10,000 tires a month.
a What is the probability that if you buy a radial tire at random, it will last between
70,000 and 85,000 miles? (1 point)
b. About how many tires from a month's production will last between 75,000 and
85,000 miles? (2 points)

Answers: 2

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1. When opening a bank account with a credit card, you will be asked to create a 4-digit PIN number...