Problem 118j

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

Mean is the ratio of sum of observations to the total number of observations.

Median is the middle value of a data set. It divides the data set into two halves, the lower half and the upper half.

Mode is the observation that has the highest frequency that is the observation that occurs maximum number of times in the data set.