Cell in contingency table
Consider a cell in contingency table. Given the cell's row total of 80, the cell's column total of 60, and sample size (grand total) of 250, which of the following is the cell's expected frequency?
A) 20.0
B) 3.125
C) 19.2
D) 1.786
Expected delivery within 24 Hours
3 gallons of fresh water flow into tank every minute, and at same time 5 gallons of mixture flow out every minute. If mixture is kept uniform by constant stirring, determine salt content of brine as the function of time t.
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What factors point to that central bank must increase its target for nominal interest rate? What factors point out that it must decrease interest rate target? What must central bank do?
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The daily average speeds for same stretch of roadways on consecutive normal days were determined by sampling 25 cars each day. What us the upper two standard deviation upper deviation speed?
The 5 kg copper ball at 75 C is dropped into 12 kg of water, originally at 5 C - in well-insulated container. Determine common temperature of water and copper ball after passage of long period of time.
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