Answer:
transformation, cause you aren't altering it
Step-by-step explanation:
Answer: 0.9746
Step-by-step explanation:
Given : A normally distributed population has a mean of 250 pounds and a standard deviation of 10 pounds.
i.e.
![\sigma=10](https://tex.z-dn.net/?f=%5Csigma%3D10)
Sample size : n= 20
Let
sample mean values.
Then, the probability that this sample will have a mean value between 245 and 255 be
![P(245](https://tex.z-dn.net/?f=P%28245%3C%5Coverline%7Bx%7D%3C255%29%20%3DP%28%5Cdfrac%7B245-250%7D%7B%5Cdfrac%7B10%7D%7B%5Csqrt%7B20%7D%7D%7D%3C%5Cdfrac%7B%5Coverline%7Bx%7D-%5Cmu%7D%7B%5Cdfrac%7B%5Csigma%7D%7B%5Csqrt%7Bn%7D%7D%7D%3C%5Cdfrac%7B255-250%7D%7B%5Cdfrac%7B10%7D%7B%5Csqrt%7B20%7D%7D%7D%29%5C%5C%5C%5C%3DP%28-2.236%3Cz%3C2.236%29%5C%20%5C%20%5B%5Cbecause%20%5C%20z%3D%5Cdfrac%7B%5Coverline%7Bx%7D-%5Cmu%7D%7B%5Cdfrac%7B%5Csigma%7D%7B%5Csqrt%7Bn%7D%7D%7D%5D%5C%5C%5C%5C%3DP%28z%3C2.236%29-P%28z%3C-2.236%29%5C%5C%5C%5C%3DP%28z%3C2.236%29-%281-P%28z%3C2.236%29%29%5C%20%5C%20%5B%5Cbecause%20P%28Z%3C-z%29%3D1-P%28Z%3Cz%29%5D%5C%5C%5C%5C%3D2P%28z%3C2.236%29-1%5C%5C%5C%5C%3D%202%28%200.9873%29-1%5C%20%5C%20%5B%5Ctext%7BBy%20z-table%7D%5D%5C%5C%5C%5C%3D0.9746)
Hence , the probability that this sample will have a mean value between 245 and 255 is 0.9746 .
The Mean Absolute Deviation (MAD) Is 13.8
Answer:
I hope this helpsss
Step-by-step explanation:
:)))