Video Transcript
Using the data given for number of absences, complete the frequency table.
The frequency table has been split into groups, one to two absences, three to four absences, five to six absences, seven to eight absences, and nine to 10 absences. There were six people who had either one or two absences. There were two ones and four twos in the table. There were two threes and one four. Therefore, there were three people who had three or four absences.
There were three fives and two sixes. Therefore, five people had either five or six absences. There were five sevens and also five eights in the data. Therefore, 10 people had either seven or eight absences. Finally, there were four nines and four 10s in the data. Therefore, eight people had either nine or 10 absences.
The missing numbers in the frequency table were six, three, five, 10, and eight, respectively. There were four rows and eight columns in the initial table. Four multiplied by eight is equal to 32. Therefore, there were 32 numbers altogether. If we add six, three, five, 10, and eight, we get an answer of 32. This is a good check as it allows us to make sure we have used every number in the dataset.
