The answer may be c but if not i am super sorry!!
Answer:
Sampling Error
Step-by-step explanation:
When the researcher randomly selected 200 people, he is creating an sample or subset from the population, that would be all the people in the earth. The error obtained was product of the fact that the analysis he made was estimated from the sample and not the whole population. There is no other mentioned factor that could cause an error, so the answer would be a sampling Error.
Answer:

Step-by-step explanation:
Changing Bases to Evaluate Logarithms

Apply change of base formula'

log term should be the numerator and denominator is the log base


64 is 4^3 and 16 is 4^2

Move the exponent before log

top and bottom has same log so cancel it out

I’m guessing 27 i divided both of the numbers but i’m not sure
Answer:
22 cm
Step-by-step explanation:
the perimeter = AB+BG+GF+FE+ED+DC+CA
= 65 cm
7+7+7+FE+7+DC+7=65 => FE = CD
35+ 2FE = 65
2FE = 65-35
= 30
FE = 30/2 = 15
so, GE = GF + FE
= 7+15 = 22 cm