(2) M1 1.1b 3b 3rd Understand and A1 1.1b use Venn diagrams for multiple events. (2) 3c 0 B1 1.1b 3rd Understand and No student reads both magazine and magazine B1 1.1b A C. use the definition of mutually exclusive in probability calculations. (2) 3d B1 1.1b 3rd Understand and use Venn diagrams for multiple events. (1) B1 2.1 3e 4th Understand and , and M1 2.2a use the definition A1 2.4 of independence in probability So yes, they are independent. calculations. (3) (10 marks) Notes 3e Allow alternative using formal conditional probability: P(B) = (B1). Finding P(B|C) = and comparing with P(B) (M1). Correct conclusion (A1). Or P(C) = (B1). Finding P(C|B) = and comparing with P(C) (M1). Correct conclusion (A1). Pearson Q Scheme Marks AOs Progression Step
(2) 3b M1 1.1b 3rd Understand and use Venn diagrams for multiple events. A1 1.1b (2) 3c 0 B1 1.1b 3rd Understand and use the definition of mutually exclusive in probability calculations. No student reads both magazine A and magazine C. B1 1.1b (2) 3d B1 1.1b 3rd Understand and use Venn diagrams for multiple events. (1) 3e B1 2.1 4th Understand and use the definition of independence in probability calculations. , and M1 2.2a So yes, they are independent. A1 2.4 (3) (10 marks) Notes 3e Allow alternative using formal conditional probability: P(B) = (B1). Finding P(B|C) = and comparing with P(B) (M1). Correct conclusion (A1). Or P(C) = (B1). Finding P(C|B) = and comparing with P(C) (M1). Correct conclusion (A1). Q Scheme Marks AOs Pearson Progression Step
14_as_statistics_and_mechanics_practice_paper_g_mark_scheme.docx