Answer:
It is 8.72 if it needs to be rounded up. If not, it is 8.71779788708
Step-by-step explanation:
Answer:
I dont know
Step-by-step explanation:
Answer: 0.0228 .
Step-by-step explanation:
Given, IQ scores are approximately normally distributed with a mean of 100 and standard deviation of 15
Let X denotes the IQ score.
Then, the proportion of people with IQs above 130 is
![P(X>130)=P(\dfrac{X-mean}{ standard\ deviation}>\dfrac{130-100}{15})\\\\= P(Z>2)\ \ \ \[Z=\dfrac{X-mean}{ standard\ deviation}]](https://tex.z-dn.net/?f=P%28X%3E130%29%3DP%28%5Cdfrac%7BX-mean%7D%7B%20standard%5C%20deviation%7D%3E%5Cdfrac%7B130-100%7D%7B15%7D%29%5C%5C%5C%5C%3D%20P%28Z%3E2%29%5C%20%5C%20%5C%20%5C%5BZ%3D%5Cdfrac%7BX-mean%7D%7B%20standard%5C%20deviation%7D%5D)

Hence, the proportion of people with IQs above 130 is 0.0228 .
The answer is J because when you add all the scores you get 76.
Answer:
sine D = 0.9459
sine E = 0.3243
Step-by-step explanation:
Mathematically, sine is the ratio of the opposite to the hypotenuse
The hypotenuse is the longest side and we have it as 37 in the diagram given
the opposite to angle E is 12
So the sine of E = 12/37 = 0.3243
For D , its opposite is 35
The sine of D = 35/37
sine of D = 0.9459