Question

Problem 118k

Answer 1

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

Step 1.

Based on the given information,

lasted days.

lasted days and

lasted days.