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WorksheetsProbability and Counting
Total questions: 17
Worksheet time: 27mins
The spinner is spun once. What is the probability the result will be a consonant?
6/8
2/8
4/8
7/8
A box contains 6 yellow, 2 black and 4 green pencils.
What is the probability of pulling a SECOND GREEN pencil (if the first one was green and was not put back)?
2/11
3/12
2/12
3/11
A box contains 6 yellow, 2 black and 4 green pencils.
What is the probability of pulling a SECOND YELLOW pencil (if the first one was yellow and put back)?
6/11
5/12
6/12
5/11
You have 30% chance of pulling a red gummy bear out of a bag.
What is the probability you will not pull a red gummy on your first pull?
3/10
1/2
7/10
2/3
What is the probability that the spinner will land on a 5?
5/12
6/12
3/12
4/12
A spinner is divided into 52 equal sectors: 8 blue, 24 red and 20 green.
If you throw a dart, what is the probability that the dart hits a sector that is not blue? The answer is simplified
7/26
6/13
5/13
11/13
If one card is drawn from a standard deck of 52 playing cards, what is the probability of drawing an ace?
41
21
131
521
The data in the table represent the number of consumer complaints against major U.S. airlines. If one complaint from the table is randomly selected, find the probability that it was filed against United Airlines.
Airline Number of Complaints
United 1172
Northwest 765
Continental 563
1172765
25001172
7651172
13281172
Identify the sample space of the probability experiment: determining the children's gender for a family of three children (Use B for boy and G for girl.) How many are the sample space.
9
8
7
6
Determine the number of outcomes in the event. Then decide whether the event is a simple event or not. Explain your reasoning.
You roll a six-sided die. Event B is rolling an even number.
1; Simple event because it is an event that consists of a single outcome
3; Not a simple event because it is an event that consists of more than a single outcome
2; Not a simple event because it is an event that consists of more than a single outcome
3; Simple event because the die is only rolled once
Use the fundamental counting principle to solve the problem.
How many different codes of 4 digits are possible if the first digit must be 3, 4, or 5 and if the code may not end in 0?
2999
300
3000
2700
Classify the statement as an example of classical probability, empirical probability, or subjective probability. The probability that it will rain tomorrow is 21%.
classical
empirical
subjective
none of these above
Classify the events as dependent or independent. The events of getting two aces when two cards are drawn from a deck of playing cards and the first card is not replaced before the second card is drawn.
independent
dependent
Can't be determined
A group of students were asked if they carry a credit card. The responses are listed in the table.
Class; Credit Card Carrier; Not a Credit Card Carrier; Total
Freshman; 45; 15; 60
Sophomore; 32; 8; 40
Total; 77; 23; 100
If a student is selected at random, find the probability that he or she owns a credit card given that the student is a freshman. Round your answer to three decimal places.
0.250
0.450
0.584
0.750
You are dealt two cards successively without replacement from a standard deck of 52 playing cards. Find the probability that the first card is a two and the second card is a ten. Round your answer to three decimal places.
0.500
0.006
0.250
0.994
A multiple-choice test has five questions, each with five choices for the answer. Only one of the choices is correct, 20%. You randomly guess the answer to each question. What is the probability that you answer all five questions correctly?
0.00032
0.00016
0.00061
0.00098
A multiple-choice test has five questions, each with five choices for the answer. Only one of the choices is correct., 20%. You randomly guess the answer to each question. What is the probability that you do not answer any of the questions correctly?
0.67232
0.40960
0.23730
0.32768
