Mathematics, 30.11.2019 02:31, tatemelliott
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. approximate the following probabilities. (round all answers to four decimal ) p(20 ≤ x ≤ 30) = (b) p(20 < x < 30) = (c) p(x ≥ 30) = (d) the probability that x is farther than 2 standard deviations from its mean value
Answers: 1
Mathematics, 21.06.2019 17:00, joylsbarbour
The ratio of rock songs to dance songs on jonathan’s mp3 player is 5: 6. the total number of rock and dance songs jonathan has is between 101 120. how many rock songs does he have?
Answers: 2
Suppose that 25% of the fire alarms in a large city are false alarms. let x denote the number of fal...
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