Answer:
$40.59
$40.59
Step-by-step explanation:
Given the data below :
$19.99, $8.99, $35.99, $49.99, $49.99, $39.99, $99.99, $79.99, $35.99, $19.99, $49.99, $29.99, $49.99, $59.99, $35.99, $49.99, $19.99, $8.99, $29.99, $35.99
The mean of the sample data :
Σ(X) / n =
Σ(X) = $811.8
n = 20
Σ(X) / n = $811.8 / 20
Mean = $40.59
Frequency distribution:
Interval_____f_______fx
8.99_______2______ 17.98
19.99______3_______59.97
29.99______2______59.98
35.99______4______143.96
39.99______1______39.99
49.99______5_____249.95
59.99______1______59.99
79.99______1______79.99
99.99______1______99. 99
Total______20______811.8
Mean = Σfx / Σf
Mean = 811.8 / 20
Mean = 40.59