Question 1: - Choose the correct sample space for the following event: prime numbers between 10 and 20.
{11, 13, 15, 17, 19}
{12, 14, 16, 18}
{11, 13, 17, 19}
{13, 17, 19}
Question 2: - In the United States, 55 % of people wear a seat belt while driving. If two people are chosen at random without replacement, what is the probability that both of them wear a seat belt? (Choose the answer closest to your calculated value).
86 %
18 %
45 %
30 %
Question 3: - The source of federal government revenue for a specific year is: 50% from individual income taxes, 32% from social insurance pay roll taxes, 10% from corporate income taxes, 3% from excise taxes, 5% other. If revenue is selected at random, what is the probability that it comes from individual incomes or excise taxes? (Write the value in percent but without the '%').
Question 4: - If you toss three coins together, how many outcomes are possible?
8
6
2
Question 5: - which of the following experiments does not have equally likely outcomes?
Tossing a coin
Rolling a die
Choosing a random letter from English alphabet
Choosing a random letter from the word 'Statistics'
Question 6:- two dice are rolled. What is the probability of getting 8 as the sum of two scores?
5/12
4/36
5/36
0
Question 7:- There are 5 orange, 3 navy, and 5 violet marbles in a hat. You pick 2 marbles from the hat. Marbles are not returned after they have been drawn. What is the probability that the first marble is orange and the second marble is not orange?
20/169
13/156
10/39
40/169
Question 8:- Seventy nine percent of female students get married within one year of graduating from University. What is the probability that the selected student does not get married within one year of graduation?
Question 9:- Which of these can not be considered a probability of an outcome? (You can select more than one answer if applicable).
1.45
0
1/296
1/10
-1/5
33 %
0.80
1
-0.59
112 %
Question 10:- In a class of 30 students, there are 12 girls and 18 boys. Eight students scored A+, of which five are girls. If a student is chosen at random, what is the probability of choosing a girl or an A+ student?
17/30
7/30
20/30
1/2
Question 11: - A single card is drawn from a deck. Find the probability that the selected card is a king or a diamond.
4/13
15/26
17/52
1/2
Question 12:- Three cards are chosen at random from a deck without replacement. What is the probability of getting a jack, again a jack and finally a ten?
8/16575
6/16575
3/16575
1/2197
Question 13: - At a particular school with 300 female students, 50 play football, 48 play basketball, and 8 play both. What is the probability that a randomly selected female student plays neither sport?
292/300
90/300
106/300
210/300
Question 14: 75 % of students at a girls college demand make-up exams. If three students are selected at random with replacement, what is the probability that they all demand make-up exam?
75/100
27/64
25/100
2701/6468