Probability related to electricity consumption

Reference no: EM1393093

According to records of Commonwealth Edison, the mean electric consumption during January is 1,650 kilowatt hours, with a standard deviation of 320 kilowatt hours. The monthly electric consumption for January follows a normal distribution.

a) Selecting a customer at random, find the probability that the customer uses less than 1,000 kilowatt hours in January.

b) Selecting a customer at random, find the probability that the customer uses between 1,500 and 2,500 kilowatt hours in January.

c) Commonwealth Edison wants to identify its heaviest users, which are those that are in the top 6% of electric consumption. How many kilowatt hours in January would qualify for the heavy user classification?

Reference no: EM1393093

Questions Cloud

Develop an aggregate plan using a spreadsheet : Helter Industires, a company that produces a line of women's bathing suits, hires temporaries to help produce its summer product demand. For the current four-month rolling schedule

Various measures of central tendency : The various measures of central tendency: compare them (how they are similar) and contrast them (how they are different), including specific references to numbers, pictures, and tables derived from the data set.

Confidence interval with a margin for error : How large a sample size will need to be selected if we wish to have a 99% confidence interval with a margin for error of .10 oz?

Explain trategic thinker-tactical planner or logistician : By orientation to cooperative work in mission-driven organization like armed forces, do you think yourself to be strategic thinker, tactical planner, or logistician?

Probability related to electricity consumption : Commonwealth Edison wants to identify its heaviest users, which are those that are in the top 6% of electric consumption. How many kilowatt hours in January would qualify for the heavy user classification?

Where is the center of mass of the system : Four objects are situated along the x axis as follows: a 1.70kg object is at -0.9m, a 1.60kg object is at 0.2m, a 2.4-kg object is at the origin, and a 2.50kg object is at -1.10m.

What is the speed of the water : A horizontal pipe contains water at a pressure of 150 {rm kPa} flowing with a speed of 1.30 {rm m/s}. The pipe narrows to one-half its original diameter. What is the speed of the water.

Describe elements of the toyota production system : Describe elements of the Toyota Production System (objectives, process, outcomes). Describe how sharpen the saw is applied in the Toyota Production System (objectives, process, outcomes)

Standard deviation-expected rate of return : Kurt's Adventures, Inc. stock is quite cyclical. In a boom economy, the stock is expected to return 30% in comparison to 12% in a normal economy and a negative 20% in a recessionary period.

User Account

All Pages