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Lesson Example Discussion Quiz: Class Homework

Quiz In Class

Title: Probability

Grade: 1400-a Lesson: S4-L3

Explanation: Hello Students, time to practice and review. Let us take next 10-15 minutes to solve the ten problems using the Quiz Sheet. Then submit the quiz to get the score. This is a good exercise to check your understanding of the concepts.

Quiz: in Class

Problem Id	Problem	Options
1	The table gives the distribution of votes for a new school mascot and grade level for 80 students. If one of these students is selected at random, what is the probability of selecting a student whose vote for new mascot was for a lion? $1$	A) \$1/4\$ B) \$1/9\$ C) \$1/5\$ D) \$2/3\$
2	A survey taken by 1,000 students at a school asked whether they played school sports. The table below summarizes all 1,000 responses from the students surveyed. How many of the males surveyed responded that they do not play a school sport? $2$	A) 109 B) 252 C) 468 D) 688
3	Each vertex of a - sided polygon is labeled with one of the letters through , with a different letter at each vertex. If one vertex is selected at random, what is the probability that the letter will be at the selected vertex? (Express your answer as a decimal or fraction, not as a percent).	A) \$3/14\$ B) \$2/15\$ C) \$1/14\$ D) \$4/14\$
4	In a bag, there are 7 red, 4 white, 33 blue, and 33 yellow cubes. If one of these cubes is selected at random, what is the probability of selecting a cube that is neither blue nor yellow?	A) \$6/7\$ B) \$7/11\$ C) \$9/7\$ D) \$1/7\$
5	The same 20 contestants, on each of 3 days, answered 5 questions in order to win a prize. Each contestant received 1 point for each correct answer. The number of contestants receiving a given score on each day is shown in the table above. No contestant received the same score on two different days. If a contestant is selected at random, what is the probability that the selected contestant received a score of 5 on Day 2 or Day 3, given that the contestant received a score of 5 on one of the three days? $5$	A) \$10/7\$ B) \$2/7\$ C) \$9/7\$ D) \$5/7\$
6	Human blood can be classified into four common blood types are A, B, AB, and O. It is also characterized by the presence or absence of the rhesus factor. The table above shows the distribution of blood type and rhesus factor for a group of people. If one of these people who is rhesus negative is chosen at random, the probability that the person has blood type B is \$1/9\$. What is the value of x ? $6$	A) 9 B) 7 C) 8 D) 6
7	An alumni association survey asked each high school graduate to select the one activity he or she preferred for the association’s next event. Some of the people responded by phone, and the others responded by email. The table above shows the distribution of preferred activity, in percent, for each response type used. For the survey, the number of email responses was twice the number of phone responses. If a person who preferred a picnic is selected at random, what is the probability that the person responded by email? $7$	A) \$2/3\$ B) \$1/3\$ C) \$4/3\$ D) \$5/3\$
8	On May 10, 2015, there were 83 million Internet subscribers in Nigeria. The major Internet providers were MTN, Globacom, Airtel, Etisalat, and Visafone. By September 30, 2015, the number of Internet subscribers in Nigeria had increased to 97 million. If an Internet subscriber in Nigeria on September 30, 2015, is selected at random, the probability that the person selected was an MTN subscriber is 0.43. There were p million MTN subscribers in Nigeria on September 30, 2015. To the nearest integer, what is the value of p?	A) 42 B) 46 C) 48 D) 50
9	In a bag, there are 10 red, 14 white, 50 blue, and 63 yellow cubes. If one of these cubes is selected at random, what is the probability of selecting a cube that is neither blue nor yellow?	A) 0.23 B) 0.17 C) 1.25 D) 2.56
10	A box contains 5 red, 4 blue, and 3 green balls. Two balls are drawn at random. What is the probability that one ball is red and the other is green?	A) \$7/22\$ B) \$3/22\$ C) \$5/22\$ D) \$9/22\$

Problem Id

Problem

Options

The table gives the distribution of votes for a new school mascot and grade level for 80 students.
If one of these students is selected at random, what is the probability of selecting a student whose vote for new mascot was for a lion?

$1$

A) \$1/4\$

B) \$1/9\$

C) \$1/5\$

D) \$2/3\$

A survey taken by 1,000 students at a school asked whether they played school sports. The table below summarizes all 1,000 responses from the students surveyed.
How many of the males surveyed responded that they do not play a school sport?

$2$

A) 109

B) 252

C) 468

D) 688

Each vertex of a - sided polygon is labeled with one of the letters through , with a different letter at each vertex.
If one vertex is selected at random, what is the probability that the letter will be at the selected vertex? (Express your answer as a decimal or fraction, not as a percent).

A) \$3/14\$

B) \$2/15\$

C) \$1/14\$

D) \$4/14\$

In a bag, there are 7 red, 4 white, 33 blue, and 33 yellow cubes. If one of these cubes is selected at random, what is the probability of selecting a cube that is neither blue nor yellow?

A) \$6/7\$

B) \$7/11\$

C) \$9/7\$

D) \$1/7\$

The same 20 contestants, on each of 3 days, answered 5 questions in order to win a prize. Each contestant received 1 point for each correct answer. The number of contestants receiving a given score on each day is shown in the table above. No contestant received the same score on two different days. If a contestant is selected at random, what is the probability that the selected contestant received a score of 5 on Day 2 or Day 3, given that the contestant received a score of 5 on one of the three days?

$5$

A) \$10/7\$

B) \$2/7\$

C) \$9/7\$

D) \$5/7\$

Human blood can be classified into four common blood types are A, B, AB, and O. It is also characterized by the presence or absence of the rhesus factor. The table above shows the distribution of blood type and rhesus factor for a group of people. If one of these people who is rhesus negative is chosen at random, the probability that the person has blood type B is \$1/9\$. What is the value of x ?

$6$

A) 9

B) 7

C) 8

D) 6

An alumni association survey asked each high school graduate to select the one activity he or she preferred for the association’s next event. Some of the people responded by phone, and the others responded by email. The table above shows the distribution of preferred activity, in percent, for each response type used. For the survey, the number of email responses was twice the number of phone responses. If a person who preferred a picnic is selected at random, what is the probability that the person responded by email?

$7$

A) \$2/3\$

B) \$1/3\$

C) \$4/3\$

D) \$5/3\$

On May 10, 2015, there were 83 million Internet subscribers in Nigeria. The major Internet providers were MTN, Globacom, Airtel, Etisalat, and Visafone. By September 30, 2015, the number of Internet subscribers in Nigeria had increased to 97 million. If an Internet subscriber in Nigeria on September 30, 2015, is selected at random, the probability that the person selected was an MTN subscriber is 0.43. There were p million MTN subscribers in Nigeria on September 30, 2015. To the nearest integer, what is the value of p?

A) 42

B) 46

C) 48

D) 50

In a bag, there are 10 red, 14 white, 50 blue, and 63 yellow cubes. If one of these cubes is selected at random, what is the probability of selecting a cube that is neither blue nor yellow?

A) 0.23

B) 0.17

C) 1.25

D) 2.56

A box contains 5 red, 4 blue, and 3 green balls. Two balls are drawn at random. What is the probability that one ball is red and the other is green?

A) \$7/22\$

B) \$3/22\$

C) \$5/22\$

D) \$9/22\$