multiply the number three times by the other number.
Answer:
Step-by-step explanation:
a) The two populations were i) the pregnant mothers who took the drug ii) the pregnant mothers who did not take the drugs
b) The data must have been obtained in a survey because experiment was not done.
c) 63 out of 3980 developed abnormalities in I case.
Hence out of 1000 abnormalities estimated = 
i.e. approximately 16
d) Mothers who did not take drug
(information incomplete)
e) Medical hypothesis testing requires accurate results and hence sample sizes should be very large.
318,224,480
5 is in the ones place so u round up
Answer:
If you go on khan academy it helps A LOT!!! Sorry I can't be of more help... I push this tramatic stuff out of my head after the lesson XD