Maths as level s1 question URGENT HELP

For the previous question I got the mean of the weight of 150 babies to be 3.46kg.
During the same period of time, 18 babies were born in the special care baby unit of the hospital. The mean weight of all 168 babies was found to be 3.35 kg.
iv) Calculate an estimate weight of the 18 babies in the special care unit
v) What effect will the addition of the 18 extra data items have on the median and the interquartile range. Explain your answer

Reply 1

RogerOxon

21

Please post your attempt.

Reply 2

imaan567

OP

5

Original post by RogerOxon

Please post your attempt.

I have no idea how to go about them haha

Reply 3

RogerOxon

21

Original post by imaan567

For the previous question I got the mean of the weight of 150 babies to be 3.46kg.
During the same period of time, 18 babies were born in the special care baby unit of the hospital. The mean weight of all 168 babies was found to be 3.35 kg.
iv) Calculate an estimate weight of the 18 babies in the special care unit
v) What effect will the addition of the 18 extra data items have on the median and the interquartile range. Explain your answer