What are the mean, median, mode and range of the data set givem the altitude of lakes in feet -12 -9 -14 -39 -49 -18 and -43

QUESTION 1

The given data set is

-12 -9 -14 -39 -49 -18, -43

The mean is given by:

QUESTION 2

The median is the middle number after arranging the numbers in order.

Let us arrange in ascending order.

-49,-43,39,-18,-14,-12,-9

Hence the median is -18

QUESTION 3

The mode of the data set is the most occurring number.

All the numbers occurs once.

The data set has no mode.

QUESTION 4.

The range is the highest value - the least value.

-9--49=40

The range is 40

NB: The negative values means the object is below the horizon.

a

step-by-step explanation:

when a number is between two straight lines it means the absolute value.

to find absolute value you need to know how many numbers is that number away from 0.

when finding absolute value the number will always come out positive

so absolute value of -3 is 3

absolute value of 3/2 is 3/2

absolute value of -2 is 2

absolute value of 3.5 is 3.5

absolute value of -1 is 1

now put these numbers in order:

a)   |-1|, |3/2|, |-2|, |-3|, |3.5|

the answer is 1/4

step-by-step explanation: