Estimate
Measures of Central Tendancy
Formulas
Solve it
Metric System
100

3.14 + 6.952

about 10


100

Find the mode:

2, 3, 6, 2, 8, 9, 5, 10, 4, 5

2 and 5

100

Find the distance: d=rt

r = 35mph

t = 2h

70miles

100

n + 3.8 = 10.9

n = 7.1

100

Choose an appropriate mesure:

Height of a building

meter; a kilometer is too large and centimeter is too small

200

21.9384 - 15.629

About 6

200

Find the median:

16.1, 16.3, 15.9, 16.2, 16.3, 16.3, 15.8

16.2

200

Area of a rectangle: A=lw

l = 16mm 

w = 24mm

384mm^2

200

y - 6.72 = 2.53

y = 9.25

200
Choose an appropriate measure:

Amount of  milk in a glass

milliliter; a liter is about the same as a quart so that would be too large

300

8.15(6.04)

About 48

300

Find the mean:

32, 35, 31, 57, 33, 30, 34

36

300

Circumference: C = 2pi(r)

r = 6in

Use 3.14 for pi

37.68in

300

c / 12.5 = 77.5

c = 968.75

300

0.85m = ___ cm

85cm

400

-17.45 divided by 3.059

About -6

400

Find the mean, median, and mode:

0.1, 7.9, 0.2, 0.3, 0.1, 0.2, 0.1, 0.1, 0.3

1.0, 0.2, 0.1

400

Perimeter of a square: P = 4s

s = 13

52cm

400

-5.7z = 110.58

z = -19.4

400

2.3m = ___ cm

230cm

500

(-2.0936)(-5.6892)

About 12

500

Which measure is the best?

The number of video games owned by students in your class.

Median, there could easily be outliers.

500

Perimeter of a rectangle: 2l + 2w

l = 2.9

w = 6.05

17.9m

500

d / 4.75 = -38.95

d = -185.0125

500

1.6kg = ___ g

1,600g

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