3. Consider the rules Age > 40 ⇒ Donor and Age ≤ 50 ⇒¬Donor.     a. Are these two rules mutually exclusive?     b. Are these two rules exhaustive?

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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3. Consider the rules Age > 40 ⇒ Donor and Age ≤ 50 ⇒¬Donor.

    a. Are these two rules mutually exclusive?

    b. Are these two rules exhaustive?

 

Name Age Salary Donor?
Nancy 21 37,000
N
Jim
27
41,000
Allen
43 61,000
Jane
38 55,000
Steve 44 30,000
Peter 51 56,000
Sayani 53
70,000
Lata
56 74,000
Mary 59
Victor 61
Dale
63
25,000
68,000
51,000
ZZKZZ
N
Y
N
N
Y
Y
Y
N
Y
Y
Transcribed Image Text:Name Age Salary Donor? Nancy 21 37,000 N Jim 27 41,000 Allen 43 61,000 Jane 38 55,000 Steve 44 30,000 Peter 51 56,000 Sayani 53 70,000 Lata 56 74,000 Mary 59 Victor 61 Dale 63 25,000 68,000 51,000 ZZKZZ N Y N N Y Y Y N Y Y
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