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A sociologist is studying trends in childbearing. He asks expectant parents in different parts of the country about the number of children in their family of origin and the total number of children they plan to have. On an average day of data collection, he gets the results shown in the first three columns of the following table. In this table, fill in the missing values in the XY column, and then calculate ΣXY.

Respuesta :

Based on the information given, it should be noted that the value of ΣX is 15 while the value of ΣXY is 34.

How to compute the values.

From the table, the following can be depicted:

  • X = Children in family of origin.
  • Y = Number of planned children
  • XY = Product of X and Y.

Therefore, the value of ΣX will be:

= 3 + 3 + 3 + 2 + 4 = 15

ΣY = 3 + 1 + 2 + 2 + 3 = 11

The value of ΣXY will be:

= 9 + 3 + 6 + 4 + 12 = 34

Learn more about computations of values on:

https://brainly.com/question/3632175

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