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The monsoon rains (in millimeters) for the $23$ strong El Ni帽o years between $1871$ and $2004::26$

Shape: The peak of the dot plot is at This means that during that season, the team's most common number of goals scored in games (known as the mode) was The United States women's soccer team scored between one and five goals in the majority of its games. The distribution, however, has a large tail to the right.

Centre: can be described by selecting a value that divides the observations in half, with the bigger half taking greater values and the smaller half taking lower values.

The spread of distribution indicates the amount of variability in the data. Giving the smallest and greatest values is one approach to describe the variability.

Round the data to the closest tenth to generate a stem plot of the rainfall amounts.

The amount of rainfall is represented using a stem-plot diagram.

(i) The stem plot without split.

(ii) The stem plot with a split.

Therefore, a stem plot with the split is preferred over a stem plot without a split as the former

The split stem plot's form features a single peak at $7$ The distribution ranges from $6$ to $9$. The distribution has an asymmetrical shape.

Shape: symmetric

Center: $7$

Spread: $6$to $9$

Between $1871$ and 2004 , the average rainfall amount in El Nino years was:

sum of the observations/total number of observations=

$$\begin{gathered} \frac{1}{23}\left(628+669+740+........+957+872\right) \\ =\frac{17631}{23} \\ =767 \end{gathered}$$

As result, the Average of rainfall amount is $767$