One environmental group did a study of recycling habits in a California community. It found that...
One environmental group did a study of recycling habits in a California community. It found that 70% of the aluminum cans sold in the area were recycled. (Use the normal approximation. Round your answers to four decimal places.)
(a) If 400 cans are sold today, what is the probability that 300 or more will be recycled?
(b) Of the 400 cans sold, what is the probability that between 260 and 300 will be recycled?
Homework Answers
Here mean=np=400*0.70=280 and standard deviation is 
a. Here we need to find 
As distribution is normal we can convert x to z
b. Now we need to find 
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One environmental group did a study of recycling habits in a
California community. It found that...
One environmental group did a study of recycling habits in a California community. It found that...
One environmental group did a study of recycling habits in a California community. It found that 73% of the aluminum cans sold in the area were recycled. (Use the normal approximation. Round your answers to four decimal places.) (a) If 395 cans are sold today, what is the probability that 300 or more will be recycled? (b) Of the 395 cans sold, what is the probability that between 260 and 300 will be recycled?
One environmental group did a study of recycling habits in a California community. It found that...
One environmental group did a study of recycling habits in a California community. It found that 75% of the aluminum cans sold in the area were recycled. (Use the normal approximation. Round your answers to four decimal places.) (a) If 398 cans are sold today, what is the probability that 300 or more will be recycled? (b) Of the 398 cans sold, what is the probability that between 260 and 300 will be recycled?
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The Diamond Peak Hotel, one of 45 hotels in the Host Marriott
management company, was bustling with business this Thursday
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