تم الحل ✓
categoryالرياضيات
schoolبكالوريوس
event_available2026-07-14
السؤال
Transcribed Image Text:
The frequency of breakdown of a machine that issues lottery tickets is given in the following table. Repairs cost an average of $240. A
service firm is willing to provide preventive maintenance under either of two options: #1 is $500 and covers all necessary repairs, and
#2 is $350 and covers any repairs after the first one. Which option would have the lowest expected cost: pay for all repairs, service
option #1, or service option #2? (Omit the "$" sign in your response.)
Number of breakdowns/month
Frequency of occurrence
Repair approach
$
456
Service option #1
$
500
Service option #2
$
422
Repair approach
Service option #1
Service option #2
0
10
1
.30
2
3
.30
.20
.10
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