Answer:
84.3%
Step-by-step explanation:
You first find the frequency. You do this by multiplying the frequency density by the class length.
A[n] = (a[n-1] +a[n+1])/2 = (3.9 +7.1)/2 = 11/2 = 5.5
Answer:
<h3>
3 : 1</h3>
Step-by-step explanation:

18.) 13.796
19.) 39.99
21.) 14.82
22.) 2.23
The decimal doesn't matter for subtraction and addition. It just goes down with the answers.
Answer:
27
Step-by-step explanation:
18+19=27