How to determine the upper and lower quartile in a box plot

The lower quartile is on the lower end of the box plot, and the upper quartile is on the upper part of the box plot.

To determine lower quartile:

- Use the formula (N + 1) × 1/4

To determine upper quartile:

- Use the formula (N + 1) × 3/4

Hope this helps! :)

30.5*10=350$

you have to multiply the number without the decimal point then add it later but if its tenn u must move the place value of the decimal point 1 to the right.