Aroll of ribbon was 9 meters long. kevin cut 8 pieces of ribbon each of length 0.8 meter, to tie some presents. he then cut the remaining ribbon into some pieces, each of length 0.4 meter.
a) how many pieces of ribbon, each 0.4 meter in length, did kevin have?
b) what was the length of ribbon left over?

The median of a data set is the measure of center that is found by adding the data values and dividing the total by the number of data values that is the value that occurs with the greatest frequency that is the value midway between the maximum and minimum values in the original data set that is the middle value when the original data values are arranged in order of increasing (or decreasing) magnitude