Statistics

I have 33 whole number observation data set. The five number set from the box and whisker plot is 16, 20, 22, 30, 46). How many observations are strictly less than 22(answer should be a ra nge of numbers)?
Is it possible that there is no observation equal to 22? Explain briefly.
How many observations are strictly less than 20? (answer should be a range of numbers)
is it possible that there is no observation equal to 20?

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