116q: low birth weight statistics of a hospital is best shown by ?
a. bar charts
b. histogram
c. pictogram
d. frequency polygon
117q: all are indicators of faecal pollution of water except ?
a. e.coli
b. streptococcal faecalis
c. clostridium welchii
d. clostridium botulinum
118q: chemical used in vaginal sponge is ?
a. ethinyl estradiol
b. progesterone
c. mifepristone
d. nonoxynol – 9
119q: failure rate of contraceptive method is determined by ?
a. pearl index
b. half life
c. number of accidental pregnancies
d. period of contraceptive practice continued
120q: 4-8 qualified persons discuss a topic infront of a large audience , is an example of ?
a. symposium
b. panel discussion
c. work shop
d. group discussion
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