Answer:
being used and the target market for that device. For instance, a device targeted to Business
personals and one targeted to young individuals may use different input methods. Suppose that
you are developing a device to be used primarily for Internet access that will be marketed to
Step-by-step explanation:
Answer:
The minimum sample size needed for each city = 922
Step-by-step explanation:
From the information given:
the objective is to find the minimum sample size needed for each city so that the margin of error not to exceed 6%.
If we take a look at the question very well:
we are only given the confidence interval of 99% and the margin of error of 6%
we were not informed or given the value or estimate of any proportions>
so we assume that:
At confidence interval of 0.99 , the level of significance = 1 - 0.99 = 0.01
The critical value for
= = 2.576
The minimum sample size needed can be calculated by using the formula :
n = 921.63
n 922
∴ The minimum sample size needed for each city = 922
Let there are total x fishes.
so 5%of x is 15
so 5×x/100=15
x=15×100/3
x=300
So there are total 300 fishes
Answer:
-(14 - 7x); 7(x - 2); 3x - 14 + 4x
Step-by-step explanation:
for -(14 - 7x) when the negative is distributed you get -14 + 7x which is still 7x - 14
for 7(x - 2) when multiplied in you get 7x - 14
for 3x - 14 + 4x when added together you get 7x - 14
Answer:
2,193 plants
Step-by-step explanation:
70% = 70/100 = 0.70
(0.70)(1290) = 903
903 + 1290 = 2193