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Chapter 15 Practice Test



Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

 1. 

Alg2 15-1 Ex 4
Find the mean, median, and mode for the following scores:
5, 6, 6, 6, 8, 10,13, 13,13,16, 18, 20
a.
mean: 11.17 median: 11.5 mode: 6 and 13
c.
mean: 11.17 median: 13  mode: 13
b.
mean: 6 median: 10 mode: 6
d.
mean: 12.18  median: 11.5  mode: 6 and 13
 

 2. 

Alg2 15-2 Part 1 Ex1
For the distribution of test scores shown in the stem and leaf plot below, find the median, first quartile, and the third quartile.
mc002-1.jpg
a.
median: 80 1st Quartile: 71 3rd Quartile: 98
c.
median: 87 1st Quartile: 78 3rd Quartile: 92
b.
median: 85 1st Quartile: 71 3rd Quartile: 98
d.
median: 85 1st Quartile: 73 3rd Quartile: 92
 

 3. 

Alg2 15-2 Part 2 Ex 5
For the distribution of heights (centimeters) shown in the stem and leaf plot below, find the variance, and standard deviation.
mc003-1.jpg
a.
variance: 20 standard deviation: 4.5
c.
variance: 19 standard deviation: 4.36
b.
variance: 22 standard deviation: 4.7
d.
variance: 23 standard deviation: 4.8
 

 4. 

Alg 2 15-5 Ex 2
How many positive integers less than 100 can be written using only digits 6, 7, 8, and 9?
a.
16
c.
4
b.
20
d.
64
 

 5. 

Alg 2 15-5 Ex 3
How many ID tags can be made using 3 symbols (lowercase letters and/or digits) with at least one letter in each?
a.
26,936
c.
45,656
b.
32,136
d.
28,080
 

 6. 

Alg 2 15-5 Ex 1
How many odd 2 digit whole numbers are there that are less than 70?
a.
35
c.
42
b.
30
d.
39
 

 7. 

Alg 2 1-5 Homework Problem
In how many different ways can a 10-question TRUE/FALSE test can be answered if every question must be answered?
a.
10
c.
512
b.
20
d.
1024
 

 8. 

Alg 2 15-6 Ex 2
In how many ways can the letters in the word: JUSTICE be arranged using only 5 letters at a time?
a.
2520
c.
35
b.
21
d.
5
 

 9. 

Alg 2 15-5 Ex 3
From a set of 9 books, 4 are to be selected and arranged on a book shelf. How many arrangements are possible?
a.
36
c.
126
b.
3024
d.
362,880
 

 10. 

Alg 2 15-5 Homework
From a set of 8 pictures, 5 are to be selected and arranged on the wall in an art gallery. How many arrangements are possible?
a.
56
c.
40
b.
6720
d.
120
 

 11. 

Alg 2 15-7 Ex 2b
Find the number of combinations of the letters in the word SOLVE, taking 2 of these letters at a time
a.
20
c.
10
b.
5
d.
32
 

 12. 

Alg 2 15-7 Ex 3a
In how many ways can a committee of 6 members be chosen from a list of 9 eligible volunteers?
a.
54
c.
531,441
b.
60,480
d.
84
 

 13. 

Alg 2 15-7 Ex 2a
Find the number of combinations of the letters in the word SOLVE, taking all 5 of them at a time.
a.
5
c.
1
b.
120
d.
25
 

 14. 

Alg 2 15-7 Like the other examples
If there are 7 items in the Panda Express Menu, how many ways are there to choose 3 different items for a 3-Entree Combo Plate?
a.
35
c.
21
b.
210
d.
5040
 

 15. 

Alg 2 15-6 & 15 -7 like the other examples
Find mc015-1.jpg and mc015-2.jpg
a.
mc015-3.jpg= 60 and mc015-4.jpg= 10
c.
mc015-7.jpg= 243 and mc015-8.jpg= 125
b.
mc015-5.jpg= 10 and mc015-6.jpg= 60
d.
mc015-9.jpg= 15 and mc015-10.jpg= 2
 

 16. 

Alg 2 15-8 Ex 4
A bag contains 4 red marbles, 6 blue marbles, 3 yellow marbles, and 2 green marbles.  If one marble is chosen at random, what is the probability that it is blue?
a.
mc016-1.jpg
c.
mc016-3.jpg
b.
mc016-2.jpg
d.
mc016-4.jpg
 

 17. 

Alg 2 15-9 Ex 3
There are 12 tulip bulbs in a package.  Nine will yield yellow tulips and three will yield red tulips. If two tulip bulbs are selected at random, find the probability that both tulip bulbs will be red.
a.
mc017-1.jpg
c.
mc017-3.jpg
b.
mc017-2.jpg
d.
mc017-4.jpg
 

 18. 

Alg 2 15-10 Ex 2
From a group of 10 seniors and 8 juniors, 3 students are to be selected at random to form a
committee.  What is the probability that at least 2 seniors are selected?
a.
mc018-1.jpg
c.
mc018-3.jpg
b.
mc018-2.jpg
d.
mc018-4.jpg
 

 19. 

Alg 2 Ch 15 Ex 8 PS1 & PS2
On a certain day the chance of rain is 40% in Chicago and 20% in Los Angeles.  Assume that the chance of rain in the two cities is independent.  What is the probability that it will not rain in either city that day?
a.
60%
c.
80%
b.
48%
d.
24%
 

 20. 

Alg 2 Ch 15 Ex 3 PS1 & PS2
From a standard deck of 52 playing cards, what is the probability of randomly selecting a 2,
followed by a 7, and then a 2, if the cards are not returned to the deck after being selected?
a.
mc020-1.jpg
c.
mc020-3.jpg
b.
mc020-2.jpg
d.
mc020-4.jpg
 



 
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