In a certain town, yearly wages are known to follow a left-skewed distribution with a mean of $51546.00 and a standard deviation of $1156.00. If we select a random sample of 53 people, what is the probability that their average yearly wage will be between $51339.57 and $51609.52? Select one:
a. 0.0968
b. 0.5586
c. 0.6554
d. We cannot answer the question with the information given.
e. 0.0928

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.