Answered

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What are the first and third quartiles of rainfall of this data? Q1 = 5. Q3 = 8 Q1 = 6, Q3 = 8 Q1 = 4, Q3 = 7 Q1 = 5, Q3 = 7.5

Sagot :

Answer:

Q1 = 5, Q3 = 8

Explanation:

There are a total of 19 dots on the chart.

[tex]\begin{gathered} Item\; in\; Q_1=\frac{1}{4}\times19 \\ =4.75th\text{ item} \end{gathered}[/tex]

The 5th item on the chart =5, therefore:

• Q1 = 5

Similarly:

[tex]\begin{gathered} Item\; in\; Q_3=\frac{3}{4}\times19 \\ =14.25th\text{ item} \end{gathered}[/tex]

The 14th and 15th item on the chart =8, therefore:

• Q3 = 8

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