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In a conditional statement, the independent part is the hypothesis and the dependent part is the conclusion.

In an if-then statement, the part of the statement immediately following 鈥渋f鈥� is the hypothesis, and the part of the statement immediately following 鈥渢hen鈥� is the conclusion.

The given statement is 鈥淎lisa plays with her dog in the yard when the weather is nice鈥�.

The given statement has two parts, 鈥渢he weather is nice鈥� and 鈥淎lisa plays with her dog in the yard鈥�.

Note that the weather is nice does not depend on Alisa playing with her dog. However, Alisa playing with her dog is dependent on the weather being nice.

So, 鈥渢he weather is nice鈥� is the independent part of the statement and thus, the hypothesis. Similarly, 鈥淎lisa plays with her dog in the yard鈥� is the dependent part of the statement and thus, the conclusion.

Write the hypothesis after 鈥渋f鈥� and conclusion after 鈥渢hen鈥� in an if-then statement to get:

鈥淚f the weather is nice, then Alisa plays with her dog in the yard.鈥�

This is the required if-then statement.