0.98867. there are eight numbers, to get from one number to another use this
Answer: B
Step-by-step explanation:
To find the standard error, divide the standard deviation by the square root of the sample size
standard deviation = 7.5
sample size = 25......sqrt 25 = 5
standard error = 7.5 / 5 = 1.5 <==
You need more information. How much is each sandwich? You could give that value a variable too. In that case p=price of sandwich so earnings=px