Answer: If X = 5, z=<u>-3</u>
If X = 37, z= <u>3.4</u>
Step-by-step explanation:
We know that the formula to find the z-score for any random variable x is given by :-
![z=\dfrac{x-\mu}{\sigma}](https://tex.z-dn.net/?f=z%3D%5Cdfrac%7Bx-%5Cmu%7D%7B%5Csigma%7D)
, where
= Population mean
= Population standard deviation.
As per given , we have
![\mu=20\\\\\sigma=5](https://tex.z-dn.net/?f=%5Cmu%3D20%5C%5C%5C%5C%5Csigma%3D5)
Then , the z-score for x =5
![z=\dfrac{5-20}{5}=\dfrac{-15}{5}=-3](https://tex.z-dn.net/?f=z%3D%5Cdfrac%7B5-20%7D%7B5%7D%3D%5Cdfrac%7B-15%7D%7B5%7D%3D-3)
i.e. If X = 5, z=<u>-3</u>
When x =37,then ![z=\dfrac{37-20}{5}=\dfrac{17}{5}=3.4](https://tex.z-dn.net/?f=z%3D%5Cdfrac%7B37-20%7D%7B5%7D%3D%5Cdfrac%7B17%7D%7B5%7D%3D3.4)
i.e. If X = 37, z= <u>3.4</u>
Answer:
Explicación paso a paso: 32 * 100 = 3,200. 3,200/40 = 80%. esa es la fórmula correcta para sacar este porcentaje
Step-by-step explanation:
:)
Hey there! :)
The formula for finding area of circles is: π · r²
<em>Remember that radius is half the diameter. To find radius when the diameter is given, divide by 2</em>
d = 26
26 ÷ 2 = 13
_____________________________________________________________
π · r²
r = 13
13² = 13 × 13 = 169
169 × 3.14 = 530.66 = 530.7
The area of the swimming pool is 530.7 ft²
Hope this helps :)
Answer:
yep that hurts if u a guy
Step-by-step explanation:
<span>The answer is A because the die rolled first time can in no way affect the outcome of the second roll of the die, so both the events are independent events which do not affect each other.</span>