Answer:
3.8 in decimal form, or 3 4/5
Step-by-step explanation:
I just used a calculator, sorry :(
anyways, hope this helped! :)
electricity comes from electrons, does morality come from morons? No, you're thinking of mormality. That is true, especially in the US. ... This means that the stupider a group is overall, the less moral they are expected to beon:
Answer:
I will take a look
Step-by-step explanation:
please mark me brainliest here ;)
Answer: C.-1.5
Step-by-step explanation:
Given: The burning time of a very large candle is normally distributed with mean
of 2500 hours and standard deviation
of 20 hours.
Let X be a random variable that represent the burning time of a very large candle.
Formula: ![Z=\dfrac{X-\mu}{\sigma}](https://tex.z-dn.net/?f=Z%3D%5Cdfrac%7BX-%5Cmu%7D%7B%5Csigma%7D)
For X = 2470
![Z=\dfrac{2470-2500}{20}\\\\\Rightarrow\ Z=\dfrac{-30}{20}\\\\\Rightarrow\ Z=\dfrac{-3}{2}\\\\\Rightarrow\ Z=-1.5](https://tex.z-dn.net/?f=Z%3D%5Cdfrac%7B2470-2500%7D%7B20%7D%5C%5C%5C%5C%5CRightarrow%5C%20Z%3D%5Cdfrac%7B-30%7D%7B20%7D%5C%5C%5C%5C%5CRightarrow%5C%20Z%3D%5Cdfrac%7B-3%7D%7B2%7D%5C%5C%5C%5C%5CRightarrow%5C%20Z%3D-1.5)
So, the z-score they corresponds to a lifespan of 2470 hours. =-1.5
Hence, the correct option is C.-1.5.
F = (-3,3)
scale factor of 10
-3 * 10 = -30
3 * 10 = 30
answer : (-30,30)