WorksheetsProbability Unit Review for EOC
Total questions: 20
Worksheet time: 1hrs 19mins
Name
Class
Date
1.
You flip a nickel three times.
Find the probability that all flips will land on tails.
Find the probability that all flips will land on tails.
a)
1/2
b)
1/4
c)
1/6
d)
1/8
2.
If the odds of being born on each day of the week is equal, what is the probability of two separate babies both being born on a school day? (Monday through Friday)
a)
5/7
b)
5/14
c)
25/49
d)
1/49
3.
You spin this spinner 3 times.
Find the probability of these 3 events.
P(red, odd, 3)
Find the probability of these 3 events.
P(red, odd, 3)
a)
1/216
b)
1/72
c)
1/36
d)
1/12
4.
A farm has 5 brown cows and 10 white cows. A fence is open and two cows escape. What is the probability that it will be a brown cow, then a white cow?
a)
1/9
b)
2/9
c)
5/21
d)
10/21
5.
Which event is not a dependent event?
a)
Picking 2 students to each be line leader and door holder from a group of 20 students
b)
Picking 2 marbles from a bag without replacing the first marble
c)
Picking 2 crayons from a box at the same time (simultaneously)
d)
Picking an earring, replacing it, then picking a 2nd earring
6.
You pick a marble from this bag.
What is the probability you will choose either a black or white marble?
What is the probability you will choose either a black or white marble?
a)
3/5
b)
9/100
c)
1/10
d)
2/5
7.
In a drawer, there are 6 white socks, 4 black socks, and 2 brown socks. You pick out a sock, replace it, then pick out a 2nd sock. What is the probability that you will pick a brown, then black sock?
a)
1/11
b)
1/18
c)
1/36
d)
2/33
8.
What is the probability that a student does not play on a sports team?
a)
.5
b)
.45
c)
.55
9.
What is the probability of choosing a Honda?
a)
.5970
b)
.5373
c)
.4627
d)
.4030
10.
What is the probability that a student does play a sport given they do not play an instrument?
a)
.2
b)
.2222
c)
.10
d)
.5
11.
What is the probability that a female is chose given they like a Toyota?
a)
.525
b)
.4627
c)
.6774
d)
.3143
12.
Pr(A∣B)
a)
Pr(A∩B)/Pr(B)
b)
Pr(A∩B)/ξ
13.
Pr(B∣A)=
a)
Pr(B)/ξ
b)
Pr(B⋂A)/Pr(A)
14.
Find the probability:
rolling a number greater than or equal to 4 on a die 2 times in a row
rolling a number greater than or equal to 4 on a die 2 times in a row
a)
1/4
b)
1/6
c)
1/3
15.
Find the probability:
drawing a face card from a deck, replacing it, and drawing a number card
drawing a face card from a deck, replacing it, and drawing a number card
a)
13/ 52
b)
30 / 169
c)
13 / 104
16.
Find the probability:
You flip a coin and then roll a fair six-sided die. The coin lands heads-up and the die shows an even number.
You flip a coin and then roll a fair six-sided die. The coin lands heads-up and the die shows an even number.
a)
1/12
b)
1/6
c)
1/4
17.
Find the probability:
A basket contains 5 apples and 7 peaches. You randomly selct one piece of fruit and eat it. Then you randomly select another piece of fruit. The first piece of fruit is an apple and the second piece is a peach.
A basket contains 5 apples and 7 peaches. You randomly selct one piece of fruit and eat it. Then you randomly select another piece of fruit. The first piece of fruit is an apple and the second piece is a peach.
a)
12/132
b)
35/144
c)
35/132
18.
Dependent or Independent:
A box of chocolates contain 5 milk chocolates, 5 dark chocolates, and 5 white chocolates. You randomly select and eat 3 chocolates. The first piece is milk chocolate, the second is dark chocolate, and the third white chocolate.
A box of chocolates contain 5 milk chocolates, 5 dark chocolates, and 5 white chocolates. You randomly select and eat 3 chocolates. The first piece is milk chocolate, the second is dark chocolate, and the third white chocolate.
a)
Dependent
b)
Independent
19.
Describe the event as independent or dependent: Susie draws a card from a deck of cards and replaces it. She then draws a second card.
a)
Independent
b)
dependent
20.
What is the probability of drawing a black card from a deck of cards, putting it aside, and then drawing a red card?
a)
Independent
b)
Dependent
100 %
