Nesa Review
Name:________________________
1. Using two different six-sided cubes numbered 1 through 6, what is the probability of rolling either a sum of 5
of a sum of 10?
1
9
A.
1
B. 6
C.
7
36
1
D. 3
2. A single six-­‐sided number cube is rolled. Which events are mutually exclusive? A.
rolling an even number or rolling a 2 B. rolling an odd number or rolling a 5 C. rolling a 2 or rolling a number less than 4
D. rolling an even number or and odd number
3. On a twelve-­‐sided cube, the sides are numbered 1 through 12. What is the probability of rolling a number that is a multiple of 2 or a multiple of 3? A. 2
12
B. 6
12
C. 8
12
D. 10
12
4. Mary’s scores in Chemistry this semester were rather inconsistent: 100, 85, 55, 90, 75, 90. What will happen to her average and standard deviation if her highest score is 90 instead of 100? A. The mean and stand deviation would increase. B. The mean and standard deviation would decrease. C. The mean would increase and the standard deviation would decrease. D. The mean would decrease and the standard deviation would increase. 5. Which class would have a larger standard deviation?
Class A where everyone in the class scored between 80% and 100%
Class B where the highest score was and 86% and the lowest score was a 47%
6. What is the perimeter of the triangle ABC?
A. 23
B. 24
C. 25
D. 26
7. The midpoint of AB is M (1, 2). One endpoint is A (-2, 6). What is the length of AB ?
A. 5 units
8.
A.
B. 10 units
C. 20 units
D. 28 units
A PIN (personal identification number) is a sequence of four digits (0 - 9). Stacy’s PIN is 1325. What is
the probability that a PIN randomly selected is identical to Stacy’s PIN?
1
10, 000
B.
1
6561
C.
1
5040
D.
1
4
uuur
9. BE is an angle bisector of ∠DBC and ∠ABC is a straight angle. What is the measure of ∠ABD ?
A. 12o
B. 14 o
C. 80o
D. 95o
10. Simplify each expression
11.
a)
b.
c.
a)
b)
c)
12. Find the values of x and y.
13.
14.
15.
16.
17.
18.
19. What is the equation of the graph below?
20.
21.
22.
23.