4. What is the mean for the following data set of 5 numbers:
84, 50, 73, 27, 16
Answer: 50
10. According to Set Theory, sets that do NOT contain themselves are typically referred to as:
normal sets
non-euclidean geometry
17. In 1700 AD, this person showed that a series of 0s and 1s could be used to denote a number:
Gottfried Liebniz
5 and 3 for the number 8; and 7 and 5 for the number 12
19. What 3 consecutive numbers add up to 45?
14, 15, and 16
25. Give the rational numbers in the following set:
-8, - 3 , 1/5, 0, π
Answer: -8, 1/5, 0
Two Children - One Boy And One Girl
1. (0, 0)
2. (1, 1)
3. (1, 2)
4. (2, 2)
Answer: A
33. In the hexadecimal counting system, the letter c stands for what base-10 number:
1. 12
2. 3
3. 16
4. 11
Answer: A
34. Which of the following is the surface area of a perfect sphere with a radius of 10 meters?
1. 1256.7 m2
2. 1200.5 m2
3. 628 m2
4. 125.7 m2
Answer: A
35. The Babylonian number system is base 60, which makes it:
1. vigesimal
2. quinary
3. binary
4. sexagesimal
Answer: D