The population of deer in a forest was measured to be 1,938 in the year 2019. If the population increased by a steady 4% per year , which of the following calculations would predict its population in 2013? A:
1.1938(4)^3 ?
2. 1938(.04)^3 ?
3..04(3)+1938 ?
4. 1933(1.04)^3 ?
B:
What is the approximate population in 2013?

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.