The answer is:
The area of the rhombus is equal to 64 squared inches.
Since we already know half of the length of the diagonals of the rhombus, we can calculate the area of the rhombus using the following formula:
From the image we can see that:
So, substituting, we have:
Hence, we have that the area of the rhombus is equal to 64 square inches.
Have a nice day!
A set of data has a normal distribution with a mean of 5.1 and a standard deviation of 0.9. Find the percent of data between 4.2 and 5.1.
Answer: The correct option is B) about 34%
Proof:
We have to find
To find , we need to use z score formula:
When x = 4.2, we have:
When x = 5.1, we have:
Therefore, we have to find
Using the standard normal table, we have:
=
or 34.13%
= 34% approximately
Therefore, the percent of data between 4.2 and 5.1 is about 34%