Aki's Bicycle Designs has determined that when x hundred bicycles are built, the average cost per bicycle is given by C(x)equa
ls=0.50.5xsquared2minus−0.20.2xplus+6.7566.756, where C(x) is in hundreds of dollars. How many bicycles should the shop build to minimize the average cost per bicycle?
The probability that student scored more than 850 we shall proceed as follows: z=(x-μ)/σ where: x=850 μ=750 σ=50 thus z=(850-750)/50 z=2 thus P(x>850)=1-P(x<850)=1-P(z<2)=1-0.9772=0.0228