Ineed with this question asap !

a group of scientists are collecting temperature data to analyze the effects of possible global warming. the data set has a mean of 58.4ºf and a mean absolute deviation of 6.8ºf. the scientists need to add the next data value which is 61.2ºf.

select all the statements that describe the effects of adding 61.2 to the data set.

answer choices:

the mean will increase.

the mean will decrease.

the mean will stay the same.

the mean absolute deviation will increase.

the mean absolute deviation will decrease.

the mean absolute deviation will stay the same.

how should i know which will increase or decrease if i don't know the data set and the values in it? !