other
Throwing
o biased die, a person will get 5 Rupees if he
throws the number 5 and will get 8 rupees for any
numbere, then the excepted income (in Rupees) bex throw is
(it is gron that the number 5 will appear 5 times as
Frequently as any
as any other numbert
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The outbreak of coronavirus (COVID-19) has led to a broad use of chemical disinfectants in order to sterilize public spaces and prevent contamination. This paper surveys the chemicals that are effective in deactivating the virus and their mode of action. It presents the different chemical classes of disinfectants and identifies the chemical features of these compounds that pertain to their biocidal activity, relevant to surface/water disinfection.
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