Question: Use your most recent itemized phone bill for the data in this problem. Assume that incoming and outgoing calls are equal in the population (why
Use your most recent itemized phone bill for the data in this problem. Assume that incoming and outgoing calls are equal in the population (why is this a reasonable assumption?). This means assume p 0.5. For the number of calls you made last month, what would be the mean number of outgoing calls in a random selection of calls? Also, compute the standard deviation. Was the number of outgoing calls you made an unusual amount given the above? In a selection of 12 calls, what is the probability that less than 3 were outgoing?
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a Number of outgoing calls for a random sample of 12 calls p 2 p 2 p05 18 b std dev npX2 c ... View full answer
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