Rebels Vikings Mean
6.3
Median
4
Standard deviation 3.7
Range
11
Over the first 10 games, the Valleyview Vikings scored the following numbers of runs:
5. 11, 10, 6, 10, 11, 7, 10,4,6
Complete the table for the Vikings by calculating each of these statistics. Round your answers to
the nearest tenth, if necessary.
a) Mean (3 points)
b) Median (2 points)
c) Range (1 point)

look at the picture.

1.

ef : ab = 2 : 3

gf : cb = 2 : 3

gh : cd = 2 : 3

he : da = 2 : 3

2.

∠a ≅ ∠e

∠b ≅ ∠f

∠c ≅ ∠g

∠d ≅ ∠h

3.

use pythagorean theorem:

the length of the abcd trapezoid sides:

|ab| = 3 cm

|bc| = 10 cm

|cd| = 3(3) cm = 9 cm

|da| = 8 cm

the perimeter of abcd = 3 + 10 + 9 + 8 = 30 cm

the ratio of perimeters of the tarapezoids is equal 2 : 3.

substitute:

      cross multiply

      divide both sides by 3