Answer:
C because i had this before and got it right
Answer:
2530
Step-by-step explanation:
First Round each number to the nearest 10s
503 into 500
472 into 470
499 into 500
539 into 540
522 into 520
then add the numbers we made
500+470+500+540+520=2530
the real answer is 2535 so its close
Answer:
B
Step-by-step explanation:
Our values are:
N = 100,000 (We assume it)
Proportion is p = 0.6
Margin of error (E) = 0.05
confidence-level (cl) = 0.95
Z-value = 1.96
We need to approach through Proportion,

Substituting,




The anwser is c because 68 is normal for adults sus