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###### Question 3 [15 marks] The COVID-19virus can be divided into two strains, namely, A and B. The following table lists the various strains among 2310 COVID-19 patients. counts of the [strain count] 1990 320According to genetic theory the types occur with probability Z(0+ 1),and respectively; where 0<0<1.Then the number of patients with strain A is modelled by random variable N with a Binln, P1) distribution; where P1 2 (0+ 1),and the number of strain B patients is modelled by a random variabl

Question 3 [15 marks] The COVID-19virus can be divided into two strains, namely, A and B. The following table lists the various strains among 2310 COVID-19 patients. counts of the [strain count] 1990 320 According to genetic theory the types occur with probability Z(0+ 1),and respectively; where 0<0<1.Then the number of patients with strain A is modelled by random variable N with a Binln, P1) distribution; where P1 2 (0+ 1),and the number of strain B patients is modelled by a random variable Nz with Brkn, Pz) distribution, where Pz = 2 3.1) Consider the following two estimators for 8: T1 = 2N-1 T2 = 2Nz 3.1.1) Show that both estimators are unbiased estimators for @ (4 marks)

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