The sample space of a random experiment of selecting a number is U = {

1.	The sample space of a random experiment of selecting a number is U = {1, 2, 3,…, 20}. Write the sets showing the following events:(1) The selected number is odd number.(2) The selected number is divisible by 3.(3) The selected number is divisible by 2 or 3.
Answer» Here, U = {1, 2, 3, …….., 20} (1) A = Event that the selected number is odd number. ∴ A = {1, 3, 5, 7, 9, 11, 13, 15, 17, 19} (2) B = Event that the selected number is divisible by 3 ∴ B = {3, 6, 9, 12, 15, 18} (3) C = Event that the selected number is divisible by 2 or 3 ∴ C = (2, 3, 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20}

The sample space of a random experiment of selecting a number is U = {1, 2, 3,…, 20}. Write the sets showing the following events:(1) The selected number is odd number.(2) The selected number is divisible by 3.(3) The selected number is divisible by 2 or 3.

Answer»

Here, U = {1, 2, 3, …….., 20}

(1) A = Event that the selected number is odd number.

∴ A = {1, 3, 5, 7, 9, 11, 13, 15, 17, 19}

(2) B = Event that the selected number is divisible by 3

∴ B = {3, 6, 9, 12, 15, 18}

(3) C = Event that the selected number is divisible by 2 or 3

∴ C = (2, 3, 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20}

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The sample space of a random experiment of selecting a number is U = {1, 2, 3,…, 20}. Write the sets showing the following events:(1) The selected number is odd number.(2) The selected number is divisible by 3.(3) The selected number is divisible by 2 or 3.

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