Using the given information, the value of Σfd is 800
<h3>Calculating mean using Assumed mean </h3>
From the question, we are to determine the value of Σfd
The formula for mean, using the assumed mean method is given by

Where
is the mean
A is the assumed mean
From the given information,



Putting the parameters into the equation, we get





Hence, the value of Σfd is 800
Learn more on Mean here: brainly.com/question/20118982
#SPJ1
Step-by-step explanation:
15.50n +10=72
15.50×4+10=72
62+10=72
Answer:
c and d
Step-by-step explanation:
ok so i do not know how to explain