Suppose that 25% of the fire alarms in a large city are
Chapter 0, Problem 7.98(choose chapter or problem)
Suppose that 25% of the fire alarms in a large city are false alarms. Let x denote the number of false alarms in a random sample of 100 alarms. Give approximations to the following probabilities: a. P(20 x 30) b. P(20 x 30) c. P(35 x) d. The probability that x is farther than 2 standard deviations from its mean value
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