Problem 118a

Given information

  engineering conferences were announced. Four conferences lasted two days. Thirty-six lasted three days. Eighteen lasted four days. Nineteen lasted five days. Four lasted six days. One lasted seven days. One lasted eight days. One lasted nine days.

And   the length (in days) of an engineering conference.

Step-by-step explanation

Organizing data in charts means arranging the data in a table format. Organizing data means presenting the data in a systematic way such that the data becomes easier to read and understand.