As of 2011, the following are the ages at which a country's presidents were inaugurated. 57,61,57,57,58,57,61,54,68,51,49,64 ,50,48,65,52,56,4654,49,50,47,55,55 ,54,42,51,56,55,51,54,51,60,62,43,5 556,61,52,69,64,46,54,47construct a grouped frequency distribution for the data. use 41 - 45 for the first class and use the same width for each subsequent class.

55? i think maybe

step-by-step explanation:

46

step-by-step explanation:

given

height = 168 cm

formula

height =2.47*f+54.13

solution

168 = 2.47f + 54.13             subtract 54.13 from both sides

168 - 54.13   = 2.47f             combine

113.87 = 2.47f                     divide by 2.47

113.87 / 2.47 = f                   combine

46.1 = f  

answer: 46 cm

i'll be glad to : )