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35 ÷ 5 - [3(3) ÷ (4 + 5)]!!​

Airline passengers arrive randomly and independently at the passenger-screening facility at a major international airport. the mean arrival rate is 10 passengers per minutes. compute the following probabilities. p(x = 4) p(x > 11)

What are the relative frequencies to the nearest hundredth of the columns of the two-way table?

What is the length of the midsegment of a trapezoid with bases of length 15 and 25 ?