Answer:
D. 348
Step-by-step explanation:
The volume of the square prisma is given by the following formula:
In which h is the height, and s is the side of the base.
Let's use implicit derivatives to solve this problem:
In this problem, we have that:
So
So the correct answer is:
D. 348
Answer:
Event is not unusual(p>0.05).
Step-by-step explanation:
Given that :
#The sample proportion is calculated as:
#Mathematically, the z-value is the value decreased by the mean then divided the standard deviation :
#We use the normal probability table to determine the corresponding probability;
Hence, the probaility is more than 0.05, thus the event not unusual and thus this is not necessarily evidence that the proportion of Americans who are afraid to fly has increased.