A
B
C
D
E
100
Bob wants to find out the best day for a school dance. He will pick a random day of the week to ask every 5th student getting out of a car. Is this a representative sample?
No, not everyone has a chance of being included in the survey ... only car riders
100
Find the mean absolute deviation (MAD) of the following numbers:
29 58 15 5 75 22
MAD = 21.7
(Mean: 34)
100
1) Which class scored better?
2) Which class had less variability?
1) Class B
2) Class A
100
What is the difference between the interquartile ranges for the two data sets?
5
(87 - 73) - (82 - 73)
100
How many different triangles, if any, can be drawn with a 75 degree angle, 5 degree angle, and a 100 degree angle?
infinitely many triangles
200
Name two cross sections for a cone.
circle, triangle
200
If an event is neither unlikely nor likely (equally likely), the probability of it happening is _____.
50% or
1/2
200
If Bob drew tiles from a bag 40 times and his results were 16 red, 14 blue, and 10 yellow, how many times could he expect to draw a yellow if he performed 2000 trials?
500
200
What is the probability that you would randomly choose a vowel from all alphabet letters and roll an even number on a die?
5/52
5/26 xx 1/2
200
Which of the spinners described below is an example of a uniform probability model?
a) A spinner with 3 sections labeled 1, 3, 5
b) A spinner with 4 sections labeled 1, 2, 3, 3
c) A spinner with 5 sections labeled 1, 3, 3, 5, 5
A
300
If (5, -4) is reflected over the x-axis, what are the coordinates of the image?
(5, 4)
300
Triangle ABC (with A: (4, 4), B: (-8, 4) and C:(-10, -4)is dilated by a scale factor of 1/4 , what are the coordinates of C'?
(-2.5, -1)
300
Rectangle WXYZ (with W:(-3, 2), X:(3, 2), Y:(3, -2), Z:(-3, -2) is translated 3 units up and 4 units to the right. What are the coordinates of Z'?
(1, 1)
300
Rational or Irrational??
-sqrt169
Rational
300
Rational or Irrational??
sqrt24
Irrational
400
Find the circumference of the circle. Round to the nearest tenth.
44 cm
400
Find the area.
84 units2
400
Find the volume.
680 cm3
400
Simpify:
3m2n3 * 4m-1n-2
12mn
400
Simplify:
x2y-4 * (-2y3)2
4x2y2
500
Simplify:
(-u2v2)0 * -u2
-u2
500
Simplify:
(-u^3v^0)^0/(u^2v^-1u^-1
v/u
500
Find the square root. Round to the nearest tenth.
sqrt 127
11.3
500
Find the missing length to the nearest tenth.
10.7
500
Simplify:
4(11m - -8n) - 7(6n - 8p)
44m -10n + 56 p
600
Simplify:
-6(f + 5g) - 3(-7g - 11f)
27f - 9g
600
Factor the greatest common factor out the expression:
36x - 24y2
12(3x - 2y2)
600
Factor the greatest common factor out of the expression.
-3x7 - 7x5 + 2x2
x2(-3x5 - 7x3 + 2)
600
Write in scientific notation:
0.00003695
3.695 x 10-5
600
Simplify. Write answer in scientific notation.
(3.25 x 10-7)(5.1 x 1010)
1.6575 x 104