Monday
Reminder set
7am
Tuesday
Reminder set
7am
Wednesday
Reminder set
7am
Thursday
Reminder set
7am
Friday
Reminder set
7am
Saturday
Reminder set
7am
Sunday
Reminder set
7am
XSIQ
*
Chance visible:hide; z-index:100;" id="overDiv"
Median
The weights recorded for five new babies at a hospital on one day were:
3.2 kg, 3.6 kg, 4.2 kg, 2.8 kg and 3.4 kg. The list of weights for the five
babies were resorted from smallest to largest. The sorted list was: 2.8 kg,
3.2 kg, 3.4 kg, 3.6 kg, 4.2 kg.
The sorted list of baby weights show that the baby with the middle value
for weight equalled 3.4 kg at birth. The middle value in the sorted list is
called the median value.
The next day eight more babies were born. The weights for the new babies
were: 2.9 kg, 4.0 kg, 3.4 kg, 3.6 kg, 3.7 kg, 3.0 kg, 4.2 kg, 3.3 kg. The
list of weights for the eight babies were resorted from smallest to
largest. The sorted list was: 2.9 kg, 3.0 kg, 3.3 kg, 3.4 kg, 3.6 kg, 3.7
kg, 4.0 kg, 4.2 kg. The sorted list of baby weights show that the babies
with the middle values of the group were born with weights of 3.4 kg and
3.6 kg.
When there is an even number of values then the median is calculated by
taking the average of the two middle values. For this example, with the
weights for eight babies, the median weight equalled 3.5 kg.
Previous | Next
Log in to save your progress and obtain a certificate in Alison’s free Diploma in Mathematics online course
Sign up to save your progress and obtain a certificate in Alison’s free Diploma in Mathematics online course
This is the name that will appear on your Certification
Please enter you email address and we will mail you a link to reset your password.