question archive 1) Sanford's gym coach made him run 30 Laps on a 900 meter track how many kilometers did he run how many miles round to two decimal places if necessary 2) A person has a 20% chance of getting Virus X at some point in their lifetime
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1) Sanford's gym coach made him run 30 Laps on a 900 meter track how
many kilometers did he run how many miles round to two decimal places if necessary
2) A person has a 20% chance of getting Virus X at some point in their
lifetime. Suppose we randomly sample 20,000 people. Let X be the number of people you ask until one of them has Virus X.
a)What is the probability that you ask 25 people before one says they have Virus X?
b) Find the mean and standard deviation of X