Quartiles divide data into how many equal parts?

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Multiple Choice

Quartiles divide data into how many equal parts?

Explanation:
Quartiles split a sorted dataset into four equal parts. They mark the 25th, 50th, and 75th percentiles, so each part contains about 25% of the observations. The median is the second quartile and lies between the lower and upper halves, with those halves each further divided into two equal parts by the first and third quartiles. This four-part division is what defines quartiles. Three parts would be thirds, two parts would be halves, and five parts would be fifths, so those options don’t apply here. Therefore, quartiles divide data into four equal parts.

Quartiles split a sorted dataset into four equal parts. They mark the 25th, 50th, and 75th percentiles, so each part contains about 25% of the observations. The median is the second quartile and lies between the lower and upper halves, with those halves each further divided into two equal parts by the first and third quartiles. This four-part division is what defines quartiles. Three parts would be thirds, two parts would be halves, and five parts would be fifths, so those options don’t apply here. Therefore, quartiles divide data into four equal parts.

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