9. In a skating competition, the marks of judges are randomly selected to count.
Then the highest and lowest marks are
dropped, and the skater receives the mean
of the remaining marks.
These are some of the marks that 11 judges
gave a skater for a
free-skating
program.
6.75 6.25 6.50
6.00 5.75 6.50
7.25 7.00 6.75
6.50 6.25
Suppose that four
marks were
dropped.
a) Remove four marks that would lower
the mean score the most. Calculate the
new mean and median.
b) Remove four marks that would raise
the mean score the most. Calculate the
new mean and median.

can you me with homework?

step-by-step explanation:

191 students play sports and ninety-seven 10th graders were surveyed.

step-by-step explanation:

the car was traveling 40 mph before it started skidding. ( 2 points ) 17. was the driver were her brakes working at 75% efficiency or better? ( 2 points ) yes 29.

step-by-step explanation:

step-by-step explanation:

this can be solved first with pythagorean theorem, which tells us to square both legs of the triangle and sum it. this will be equal to the square of the hypotenuse.

the hypotenuse is the side "opposite" the 90 degree angle, which is x.

so we can write using pythagorean theorem,

simplifying:

to further simplify this radical, we need to use the property  

thus