Answer:
Option 2 - Approximately 24–36 pounds
Step-by-step explanation:
Given : A standard American Eskimo dog has a mean weight of 30 pounds with a standard deviation of 2 pounds. Assuming the weights of standard Eskimo dogs are normally distributed.
To find : What range of weights would 99.7% of the dogs have?
Solution :
The range of 99.7% will lie between the mean ± 3 standard deviations.
We have given,
Mean weight of Eskimo dogs is
Standard deviation of Eskimo dogs is
The range of weights would 99.7% of the dogs have,
![R=\mu\pm3\sigma](https://tex.z-dn.net/?f=R%3D%5Cmu%5Cpm3%5Csigma)
![R=30\pm3(2)](https://tex.z-dn.net/?f=R%3D30%5Cpm3%282%29)
![R=30\pm6](https://tex.z-dn.net/?f=R%3D30%5Cpm6)
![R=30+6,30-6](https://tex.z-dn.net/?f=R%3D30%2B6%2C30-6)
![R=36,24](https://tex.z-dn.net/?f=R%3D36%2C24)
Therefore, The range is approximately, 24 - 36 pounds.
So, Option 2 is correct.
Answer:
the 2nd one is the answer :)
I think the answer is A. Cause your supposed to subtract so 7n-4n=3n, and 3-2=1 :) I hope this helps
Answer:
sali's speed was 18.75 km/h
Step-by-step explanation:
Jane took 3.5 hours to cycle the 63 km.
As, , so the speed of Jane will be:
Suppose, the speed of Sali is km/h
Sali caught up with Jane when they had both cycled 30 km.
So, the time required for Jane to cycle 30 km and the time required for Sali to cycle 30 km
Given that, Sali started to cycle 4 minutes or after Jane started to cycle. So, the equation will be.......
She does not use her creator card a lot or she does not purchase many expensive items