A company manufactures CD drives that sometimes experience disc-read errors. If a CD drive is tested for 250 read operations and fails 4 times, what is the probability that a CD drive will fail? Round your answer to the nearest tenth.
The probability that a CD drive will fail is
9.

The chart below shows the distribution of weeds in yard

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.

Asporting good store is offering 30 percent off of the original price(x) of football cleats. the discount will be reduced by an another $7 before sales tax.