Question

Let A = { x : x is a positive prime less than 10 } and B = { x ; x Є N and 0 < x – 2 ≤ 6 } then find
a) A ∪ B
b) ( A ∩ B) |
c) A – B
d) n( B – A )
e) Verify that
i) n ( A ∪ B ) = n ( A ) + n ( B ) – n ( A ∩ B )
ii) n ( A – B ) = n ( A ∪ B ) – n ( B )
iii) n ( B – A ) = n ( B ) – n ( A ∩ B )

Answer 1

Answer:

Psychometrics is a field of study concerned with the theory and technique of psychological measurement. As defined by the US National Council on Measurement in Education, psychometrics refers to psychological measurement.