Answer:
370 dollars
Step-by-step explanation:
Because people in the market can use it against you / scam you.
If you know someone doesn't have any prior knowledge of what you're selling you can easily say," this helped my grandma cure her cancer" etc. You could easily be used if you're not aware.
Answer:
-24
Step-by-step explanation:
No, Rays go one way only since a point block te other way. Otherwise it wont be a ray :)
Answer: The standard error of the sample mean = 0.44
Step-by-step explanation:
Standard error of the sample mean =
<em> , where </em>
= population standard deviation , n= sample size.
Given : n= 45 ,
grams
The e standard error of the sample mean 

Hence, the standard error of the sample mean = 0.44