Empirical rule to find the percentage of adults
Adult IQ scores have a bell-shaped distribution with mean of 100 and a standard deviation of 15. Use the empirical rule to find the percentage of adults with IQ scores between 70 and 115
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The temperature at the conclusion of the adiabatic expansion is 20°C. Sketch the cycle on T-s and P-v diagrams. Determine the heat added and net work in KJ, and the thermal efficiency.
In one sample of mobile homes in the Los Angeles area, the mean NO2 concentration in kitchens during the summer was 38.84 ppb, and the standard deviation was 11.44. Making no assumptions about the shape of the NO2 distribution, what can be said ab
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A brand name has an 80% recognition rate. If the owner of the brand wants to verify that rate by beginning with a small sample of 5 randomly selected consumers, find the probability that exactly 4 out of the 5 consumers recognize the brand name. A
Combustion of 3.50g of ethanol, C2H5OH (l) ina calorimeter with a heat capacity of 15.2kJ/°C causes a temperature increase from 19.88°C to 26.18°C. Find the molar enthalpy of combustion for ethanol from this evidence.
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A online DVD company has on average in inventory of $10,000,000 and an inventory turn of 3. The DVD company thinks they can do video on demand and lower their inventory to $5,000,000 for their same sales volume.
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