Answer:
22.23
Step-by-step explanation:
Given that in a binomial experiment study, in a certain community showed that 5% of the people suffer from insomnia
i.e p = 0.05
q=0.95
n=10400
[tex]np=10400*0.05=202\\npq =494[/tex]
Var(x)=[tex]npq=494\\std dev=\sqrt{494} \\=22.23[/tex]
the standard deviation of the number of people who suffer from insomnia
=22.23
