Given the data:

first, Make the data in order from the least to the greatest

So, The minimum = 49
Maximum = 67
Median, divide the data into two equal groups:
( 49 , 50 , 51 , 52 ) , 52 , ( 52 , 53 , 55 , 67 )
So, Median = 52
First quartile = ( 50 + 51 )/2 = 50.5
Third quartile = ( 53 + 55 )/2 = 54