Answer:
Step-by-step explanation:
Given in the data set as
26, 34, 38, 49, 65, 76, 81
Sum = 369
No of entries = 7
Mean =52.71
When 1213 is included
New sum = 1582
No of entries =8
New mean = 197.75
Thus mean increases by 145.04
Answer:
17/120
Step-by-step explanation:
Add up all adults, because its only asking for adults, and 17 of them buy vinyl out of 120
Answer:
V = 1/3×pi×r^2×h
V= 1/3 × 3.14 × 20×20 × 38 = 15,909.333333333 = 15909
i am not sure about calculation ,so check it again yourself please .