Answer:
36 square feet
Step-by-step explanation:
To get the answer you need to find the area of the triangle and subtract area of the rectangle.
7*12/2 = 42
42 - 3*2 = 36
Answer:
The standard deviation of the sampling distribution of the sample proportion of sea turtles longer than 6.5 feet for samples of size 90 is of 0.0405
Step-by-step explanation:
Central Limit Theorem:
For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean
and standard deviation 
18 percent are longer than 6.5 feet.
This means that 
A random sample of 90 sea turtles
This means that 
What is the standard deviation of the sampling distribution of the sample proportion of sea turtles longer than 6.5 feet for samples of size 90

The standard deviation of the sampling distribution of the sample proportion of sea turtles longer than 6.5 feet for samples of size 90 is of 0.0405
Answer:
36
Step-by-step explanation:
Data provided in the question:
Standard error = 1.5 minutes ( ∵ number are repetitive 1.51.5 )
Standard deviation = 9 minutes ( ∵ number are repetitive 99 )
Now,
Standard error = ( Standard deviation ) ÷ √n
Here,
n is the sample size
Therefore,
on substituting the respective values, we get
1.5 = 9 ÷ √n
or
√n = 9 ÷ 1.5
or
√n = 6
or
n = 6² = 36
Answer:
48 cm^2
Step-by-step explanation:
Splitting into two rectangles with areas 36 and 12 will make it easier.
After splitting, add them together to get 48 cm ^2.