Mrs. hall records the height of 50 students in a spreadsheet the mean height is 68 inches after looking at the data again she realize that two of the 50 observations were outliers that must have been typos 82 and 86 inches she deleted these two observations what is the new mean rounded to the nearest hundredth

The new mean rounded to the nearest hundredth is:

                            67.33

Step-by-step explanation:

The mean height of 50 students is: 68 inches.

Let be the height of 50 students.

Let us suppose that:

Hence, we have:

Hence, after deleting the outlier the mean of the remaining students is:

                                        67.33

step-by-step explanation:

1. practice, practice & more practice

2. review errors

3. master the key concepts

do not try to memorise the processes.

4. understand your doubts.

5. create a distraction free study environment

6. create a mathematical dictionary

7. apply maths to real world problems.

y = 3x+4

step-by-step explanation:

to find the slope

slope = (y2-y1)/ (x2-x1)

    = (-8-4)/ (-4-0)

    = -12/-4

  = 3

using the slope intercept form of a line

y= mx+b

we know the slope is 3

we know the y intercept is 4 ( the point where it crosses the y axis or x=0)

y = 3x+4