Refer to the following distribution of commissions:
Monthly CommissionsClass Frequencies
$600 up to $8003
$800 up to $1,0007
$1,000 up to $1,20011
$1,200 up to $1,40022
$1,400 up to $1,60040
$1,600 up to $1,80024
$1,800 up to $2,0009
$2,000 up to $2,2004
What is the relative frequency of salespeople who earn $1,600 or more?
Monthly Commission Class |
Frequency | Relative frequency |
600 - 800 | 3 | 3/120 |
800 - 1000 | 7 | 7/120 |
1000 - 1200 | 11 | 11/120 |
1200 - 1400 | 22 | 22/120 |
1400 - 1600 | 40 | 40/120 |
1600 - 1800 | 24 | 24/120 |
1800 - 2000 | 9 | 9/120 |
2000 - 2200 | 4 | 4/120 |
Total | 120 |
P(X>= 1600) = (24/120) + (9/120) + (4/120)
= (24+9+4)/120
= 37/120
= 0.3083
relative frequency of salespeople who earn $1,600 or more is (37/120).
Refer to the following distribution of commissions: Monthly CommissionsClass Frequencies $600 up to $8003 $800 up...
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