In the mining industry coal is transported from the mine to the plant using hopper rail cars. The cars areloaded using an automatic conveyor belt that is set to put and average of 74 tons of coal into each car. Theactual weights of the coal loaded into each car are normally distributed with a standard deviation of 0.48tons.a.) What is the probability that one car chosen at random will have more than 73 tons of coal? (Round youranswer to 4 decimal places)P(x > 73) ==b.) What is the probability that 20 cars chosen at random will have a mean load weight more than 73 tonsof coal? (Round your answer to 4 decimal places)P(x > 73) ==Submit All Parts In the mining industry coal is transported from the mine to the plant using hopper rail cars. The cars areloaded using an automatic conveyor belt that is set to put and average of 74 tons of coal into each car. Theactual weights of the coal loaded into each car are normally distributed with a standard deviation of 0.48tons.a.) What is the probability that one car chosen at random will have more than 73 tons of coal? (Round youranswer to 4 decimal places)P(x > 73) ==b.) What is the probability that 20 cars chosen at random will have a mean load weight more than 73 tonsof coal? (Round your answer to 4 decimal places)P(x > 73) ==Submit All Parts

given data normal distributionμ = 74σ = 0.48

In the mining industry coal is transported from the mine to the plant using hopper rail cars. The cars are loaded using an automatic conveyor belt that is set to put and average of 74 tons of coal into each car. The actual weights of the coal loaded into each car are normally distributed with a standard deviation of 0.48 tons. a.) What is the probability that one car chosen at random will have more than 73 tons of coal? (Round your answer to 4 decimal places) P(x>73) = = b.) What is the probability that 20 cars chosen at random will have a mean load weight more than 73 tons of coal? (Round your answer to 4 decimal places) P(x > 73) =

In the mining industry coal is transported from the mine to the plant using hopper rail cars. The cars are loaded using an automatic conveyor belt that is set to put and average of 74 tons of coal into each car. The actual weights of the coal loaded into each car are normally distributed with a standard deviation of 0.48 tons. a.) What is the probability that one car chosen at random will have more than 73 tons of coal? (Round your answer to 4 decimal places) P(x>73) = = b.) What is the probability that 20 cars chosen at random will have a mean load weight more than 73 tons of coal? (Round your answer to 4 decimal places) P(x > 73) =

Calculus For The Life Sciences

2nd Edition

ISBN:9780321964038

Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Chapter13: Probability And Calculus

Section13.3: Special Probability Density Functions

Problem 40E: Pygmy Height The average height of a member of a certain tribe of pygmies is 3.2ft, with a standard...

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