Mean number of jobs completed within the bid time
A large disaster cleaning company estimates that 30% of the jobs it bids on are finished within the bid time. Looking at a random sample of 8 jobs that is has contracted:
Calculate the mean number of jobs completed within the bid time.
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Air with a volume of 0.5 m3 under the piston is heated so that the piston moves up. Find the total heat transfer to the air when the piston has been pushed up to the top end of the cylinder.
A 4.0 m diameter merry-go-round is initially turning with a 4.4 s period. What is the speed of a child on the rim?
Suppose I had to find two light bulbs from a collection of 12, all but 3 of which are working. If I test each one in turn, what is the probability that I would find two working bulbs
Experiment result: Concentration of HC2H3O2 = 0.00855 mole HC2H3O2/ 0.0100L(10mL) solution =0.855M The manufacturer's vinegar used in this experiment claims that the vinegar contains 5% acetic acid by weight.
A large disaster cleaning company estimates that 30% of the jobs it bids on are finished within the bid time. Looking at a random sample of 8 jobs that is has contracted: Calculate the mean number of jobs completed within the bid time.
The inlet velocity is 3 m/s and the pipe is well insulated (no heat transfer). The specific enthalpy decreases by 25 kJ/kg from inlet to exit. Determine the velocity at the exit, in m/s.
What must the charge (sign and magnitude) of a particle of mass 1.50 g be for it to remain stationary when placed in a downward-directed electric field of magnitude 600 N/C?
A sample of primary standard grade K2Cr2O7 (MM = 294.20) weighing 0.2153g is dissolved, the solution acidified and excess KI added. The liberated I2 requires 44.86ml of the Na2S2O3 for titration.
In a study of the correlation between the amount of rainfall and the quantity of air pollution removed, the following data were collected:
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