Kentucky Derby Winning Times, 1930-2016 (seconds)
From
To
f
119
120
1
120
<
121
2
121
122
10
122
123
15
123
124
12
124
<
125
10
125
<
126
7
126
127
3
127
<
128
2
Total
62
Click here for the Excel Data File
(a) Fill in the highlighted cells in the table below. (Round your answers to 2 decimal places.)
Midpoint
f(-2)2
<
To
120
121
122
123
124
<
Fron
119
120
121
122
123
124
125
126
127
<
<
Frequency
(f)
1
2
10
15
12
10
7
3
2
62
Standard Deviation =
119.5
120.50
121.50
122.50
123.5
124.50
125.50
126.50
127.50
fxm
119.50
241.00
1,215.00
1,837.50
1,482.00
1,245.00
878.50
379.50
255.00
7653
<
125
126
127
<
<
128
Total
Average -
123.44
CV -
3