The table below shows the average attendance of school events by the day of the week on which they are held.

Average Attendance at School Events


Thursday
Friday
School Play
300
x
Band Concert
184
250

Which values of x will indicate an association between the two variables in the two-way table? Select the three correct answers.

Respuesta :

The three possible values of x that show association are 407, 422 and 714

The entry on the table represent an inverse relation.

So, we have:

[tex]\frac{300}{184} = \frac{x}{250}[/tex]

Cross multiply

[tex]184 \times x = 300 \times 250[/tex]

Multiply 300 and 250

[tex]184 \times x = 75000[/tex]

Divide both sides by 184

[tex]x = 407[/tex]

Other possible values of x must be greater than 407.

So, the possible values of x that show association are 407, 422 and 714

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