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 Form 3 Probability Video Questions and Answers

In a livestock research station a new drug for a certain fowl disease is being tried. A sample of 36 fowls was diagnosed to have the disease. Twenty (20) fowls were treated with the drug and the rest were not.
(a) Calculate the probability that fowl picked at random is
(i)treated with the drug .
(ii)not treated with the
drug.
(b) If a fowl is treated, the
probability of dying is#
1
/10#
while if not treated the
probability is#
7
/10#
.
Calculate the probability
that ,a fowl picked at
random from the 36
fowls is
(i) treated with the
drug and will die.
(ii) not treated with the
drug and will die.
(iii) not treated with the
drug and will not
die.

 (4m 6s)
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