In a factory that makes bolts, 20% of the bolts being made by a certain machine are defective. The factory owner wants to determine the probability that two bolts in a row will be defective. He decides to use random numbers as a simulation tool. The following list shows 100 two-digit numbers that were randomly generated to represent two bolts in a row. If he uses the digits 0 and 1 to represent defective bolts, how many times were two bolts in a row defective?
Answers
Given : In a factory that makes bolts, 20% of the bolts being made by a certain machine are defective. The factory owner wants to determine the probability that two bolts in a row will be defective.
He decides to use random numbers as a simulation tool. The following list shows 100 two-digit numbers that were randomly generated to represent two bolts in a row
he uses the digits 0 and 1 to represent defective bolts,
To Find : how many times were two bolts in a row defective?
Step-by-step explanation:
he uses the digits 0 and 1 to represent defective bolts,
Hence 10 or 01 represent two defectives bolts in a row.
There are two times 10
and one time 01
Hence 3 times two defectives bolts in a row.
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