In class A, there are 8 boys and 16 girls who all want to join a...
In class A, there are 8 boys and 16 girls who all want to join a quiz show, whereas in class B there are 10 boys and 10 girls. A student is randomly chosen from class A and put into class B, and a student is then randomly selected from class B.
a) the probability that the student selected from class B is a boy is
b) the conditional probability that the transferred student was boy, given that a boy is selected from class B is
Homework Answers
2.Exam-like questioin A class consists of 12 girls and 16 boys. Jane is one of the...
2.Exam-like questioin A class consists of 12 girls and 16 boys. Jane is one of the girls and Jonatharn is one of the boys. (i) In how many ways can we make a group of 2 girls and 3 boys? (ii) What is the probability that Jane is not in that group and Jonathan is? (iii) What is the probability that Jonathan is and Jane is not in a group of 5 students selected randomly out of the 28? (iv)...
11. Suppose a class of 8 boys and 7 girls are to attend a theatrical performance,...
11. Suppose a class of 8 boys and 7 girls are to attend a theatrical performance, and the teacher obtains 15 tickets (one for each student) in a row. How many ways are there to order the students under the following conditions? a The children are randomly assigned seats. b Boys and girls are alternated so that boys sit by girls and girls sit by boys. c All boys sit together, and all girls sit together.
1) In a certain class of students, there are 11 boys from Wilmette, 6 girls from...
1) In a certain class of students, there are 11 boys from Wilmette, 6 girls from Winnetka, 7 1) girls from Wilmette, 4 boys from Glencoe, 2 boys from Winnetka and 9 girls from Glenoce. If the teacher calls upon a student to answer a question, what is the probability that the student will be a boy?
PLEASE ANSWER CLEARLY Suppose there are 30 students in a class of which 10 are boys...
PLEASE ANSWER CLEARLY
Suppose there are 30 students in a class of which 10 are boys and 20 are girls. a. What is the probability of randomly selecting without replacement, a boy first and then two girls? Round decimal answers to 3 decimal places. Suppose there are 30 students in a class of which 10 are boys and 20 are girls. b. What is the probability of randomly selecting at least one boy in 5 students with replacement)? Show fraction(s)...
There are 13 girls and 7 boys in Ms. Sally's 3rd grade class waiting to have...
There are 13 girls and 7 boys in Ms. Sally's 3rd grade class waiting to have their individual photos taken for the current school year. If two students are being randomly selected without replacement, find the probability the second child chosen is a girl. Give your answer as a decimal rounded to 4 decimal places. (Hint: In this problem you may need to consider two cases. In the first case, the first child chosen is a boy and then the...
4 ot 8 (complete) This Quiz: 8 pts po ssuming boys and girls are equally likely,...
4 ot 8 (complete) This Quiz: 8 pts po ssuming boys and girls are equally likely, find the probability of a couple having a baby girl when their all girls girl when their sixth child is bom, given that the first five chidren were The probability is (Type an integer or a simplified fraction)
Box I contains 4 defective and 8 non-defective products, whereas box II contains 5 defective and...
Box I contains 4 defective and 8 non-defective products, whereas box II contains 5 defective and 5 non-defective products. An item is randomly chosen from box I and put into box II, and an item is then randomly selected from box II. a) the probability that the product selected from box II is defective is ? b) the conditional probability that the transferred item was defective, given that a defective item is selected from box II is?
Question 1 160 pts Question 1. A class consists of 4 boys and 5 girls. Answer...
Question 1 160 pts Question 1. A class consists of 4 boys and 5 girls. Answer the following questions: (a) In how many different ways can they be arranged along a line such that the boys are all together and the girls are also all together? (b) In how many different ways can the class be arranged along a circle? (c) In how many different ways can a group of 4 students be selected from the class such that there...
Answer only 8.15, do not answer 8.14. If all work is shown, I will thumbs up....
Answer only 8.15, do not answer 8.14. If all work is shown, I
will thumbs up.
*8.14 The probability of a boy being born equals.50, or 1/,, as does the probability of a girl being born. For a randomly selected family with two children, what's the probability of (a) two boys, that is, a boy and a boy? (Reminder: Before using either the addition or multiplication rule, satisfy yourself that the various events are either mutually exclu- sive or independent,...
A student club consists of 14 girls and 16 guys. A committee of 8 is to...
A student club consists of 14 girls and 16 guys. A committee of 8 is to be selected. In how many ways can this be done if: A.) the committee must have at least 6 girls on it. B.) three officers (president, vice president, secretary/treasurer) are selected from ALL the members. Please show work.
2.Exam-like questioin A class consists of 12 girls and 16 boys. Jane is one of the girls and Jonatharn is one of the boys. (i) In how many ways can we make a group of 2 girls and 3 boys? (ii) What is the probability that Jane is not in that group and Jonathan is? (iii) What is the probability that Jonathan is and Jane is not in a group of 5 students selected randomly out of the 28? (iv)...
11. Suppose a class of 8 boys and 7 girls are to attend a theatrical performance, and the teacher obtains 15 tickets (one for each student) in a row. How many ways are there to order the students under the following conditions? a The children are randomly assigned seats. b Boys and girls are alternated so that boys sit by girls and girls sit by boys. c All boys sit together, and all girls sit together.
PLEASE ANSWER CLEARLY
Suppose there are 30 students in a class of which 10 are boys and 20 are girls. a. What is the probability of randomly selecting without replacement, a boy first and then two girls? Round decimal answers to 3 decimal places. Suppose there are 30 students in a class of which 10 are boys and 20 are girls. b. What is the probability of randomly selecting at least one boy in 5 students with replacement)? Show fraction(s)...
4 ot 8 (complete) This Quiz: 8 pts po ssuming boys and girls are equally likely, find the probability of a couple having a baby girl when their all girls girl when their sixth child is bom, given that the first five chidren were The probability is (Type an integer or a simplified fraction)
Question 1 160 pts Question 1. A class consists of 4 boys and 5 girls. Answer the following questions: (a) In how many different ways can they be arranged along a line such that the boys are all together and the girls are also all together? (b) In how many different ways can the class be arranged along a circle? (c) In how many different ways can a group of 4 students be selected from the class such that there...
Answer only 8.15, do not answer 8.14. If all work is shown, I
will thumbs up.
*8.14 The probability of a boy being born equals.50, or 1/,, as does the probability of a girl being born. For a randomly selected family with two children, what's the probability of (a) two boys, that is, a boy and a boy? (Reminder: Before using either the addition or multiplication rule, satisfy yourself that the various events are either mutually exclu- sive or independent,...
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