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Example 3: A teacher wanted to determine the average height of Grade 9 students in their school. What he did was to go to one

Example 3: A teacher wanted to determine the average height of Grade 9 students in their school. What he did was to go to one of the eight sections in Grade 9 and then took their heights. He computed for the mean height of the students and got 165 cm.

a. What is the point estimate? b. Is it a good point estimate?Why?

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