Taller children tend to be able to read at a higher level. however, there is a very significant confounding variable that is influencing both height and reading ability. what is it

The correct answer is The age of the child is a significant confounding variable that influences both height and reading ability.

the median of the data is 4.

step-by-step explanation:

the median means the middle number of a given number.

to decide which one is the median, arrange in ascending or descending order. but sometimes, you may find two(2) number in the middle, but it's easy, just add them together and divide by 2.

so,   determine the median of the data. 2, 3, 3, 4, 5, 7, 9

it is already arranged, count 3 times forward and 3 backward and the one left is your answer.

2,3,3,4,5,7,9

our answer is 4.

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the correct answer is :

{b.}   ( american workers lose job opportunities )

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