Answer:
(a)0.3303
(b)0.6697
Step-by-step explanation:
Point estimation is the use of sample data to calculate a single value which serves as a best estimate of a given unknown population parameter.
Total Sample=1226
Number who said that they were not confident that the food they eat in country A is safe=405.
The point estimate of those who said that they were not confident that the food they eat in country A is safe is given as 
(a)Point Estimate for p,

(b)Point estimate for q,
1- (point estimate for p)
=1-0.3303
=0.6697
Answer:10
Step-by-step explanation:
28-4-4=20
20÷2=10
10+10+4+4=28
Answer:
Step-by-step explanation:
x18y32 x18y x6y4 x6y32
use the quotient rule then after using it the first time use it again on your resulting equation, since you are looking for the second derivative
Answer:
25
Step-by-step explanation:
square 7 and 24 to get 625. Then square root it to get 25