UALITY ASsURANCE SURVEYS The customer service depart- ment of Universal Instrume

Question

UALITY ASsURANCE SURVEYS The customer service depart- ment of Universal Instruments, manufacturer of the Orion tablet computer, conducted a survey among customers who had returned their purchase registration cards. Purchasers of its tablet computer were asked to report the length of time t in days before service was required. a. Describe a sample space corresponding to this survey b. Describe the event E that a tablet computer required service before a period of 90 days had elapsed. c. Describe the event F that a tablet computer did not require service before a period of 1 year had elapsed

Explanation / Answer

Sample space t = No of days before a card is returned for service

= {1,2,3...,365,...}

b) E = { t: t<90 days}

c) F = {t: t > 365 days}

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