Answer:
option A is correct
hope it helps :)
Step-by-step explanation:
The Standard Deviation Rule states that for a normal distribution, nearly all of the data will fall within three standard deviations of the mean. It states that
68% of data falls within the first standard deviation from the mean.
95% fall within two standard deviations.
99.7% fall within three standard deviations.
Therefore, looking at the options, the true statement id
A) For a normal distribution, 99.7% of the distribution is within 3 standard deviations.
Answer:
Pythagoras Theorem
Step-by-step explanation:
Like you rightly stated, in a right angled triangle. The phenomenon you mentioned is what us called Pythagoras theorem which proved to us that the square of the length of the hypotenuse of a right angled triangle, is equal to the square of the length of the opposite side to the angle in question, and also to the square of the length of the side adjacent to the same angle in question.
Essentially,
a² + b² = c², where c is the hypotenuse and a & b is the length of the two other sides
The length of each side of each leaf is about 5.7.
I assume the the side you are looking for is the outside diagonal side.
To find this, you can use the Pythagorean Theorem for half the distance.
2^2 + 2^2 = c^2
4 + 4 = c^2
8 = c^2
2.828 = c
Now, multiply this by 2 because we only found half of the complete side.
The length is about 5.7 units.
By definition, BF = 1/2 * CE;
So, BF = 1/2 * 90 = 45.
BF = 45
(Midsegment Length Theorem)
