A household survey of 10 families was conducted by students of 4th year MBBS, Wah Medical
College In the data they collected, the ages of heads of families were: 32, 34, 35, 36, 36, 42, 44,
46, 48, and 52. The mean age of heads of families is
a) 36
b) 38.5
c) 40
d) 40.5
e) 42
Key: True: d
A woman brings her child to the hospital for mongolism. The possible agent of the disease
that comes in your mind is?
a) Bacteria
b) Virus
c) Nutritional factor
d) Hormonal factor
e) Chromosomal factor
Key: True: e
A child of three years comes with complaints of night blindness. On examination conjunctiva
is dry and corneal haziness is also seen. There is no history of any other disease or injury. The
likely agent type is:
a) Physical
b) Chemical
c) Nutritional
d) Hormonal
e) Immunological
Key: True: c