P(E1) = P(4 or 5) = `2/6 = 1/3`

P(E2) = P(1, 2 or 3) `= 3/6 = 1/2`

They are independent events, so

`P(E_1" and "E_2) ` `= P(E_1) × P(E_2) ` `= 1/3 × 1/2 ` `= 1/6`

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