There are 23 people in this MA131 class and 4 students are male. Suppose you randomly...

There are 23 people in this MA131 class and 4 students are male. Suppose you randomly select 2 students without replacement. Formulas are enough to receive credit, no need to provide a decimal answer.

(a) What is the probability of both students being male?

(b) What is the probability that at least one student is male?

Solutions

Expert Solution

Probability calculation by combinations.

orchestra answered 1 year ago

Next > < Previous

Related Solutions

Suppose that students own an average of 4 pairs of jeans. 8 people from your class...

Suppose that students own an average of 4 pairs of jeans. 8 people from your class were surveyed to determine if the average for students is higher than 4. DATA TO USE: 2, 2, 3, 4, 6, 6, 8, 9 a. Give the null and alternative hypotheses: Ho: _______________ Ha: ___________________ b. In words, CLEARLY state what your random variable or P' represents. c. State the distribution to use for the test. If t, include the degrees of freedom. If...

if two people are randomly selected from a class of 30 students, what is the probability...

if two people are randomly selected from a class of 30 students, what is the probability that they have the same birthday?

The proportion of male students at SIBT is known to be 62%. Assume students are randomly...

The proportion of male students at SIBT is known to be 62%. Assume students are randomly assigned to tutorial groups. What is the probability that there would be fewer than 10 males in a tutorial group of 25 students? (4dp) Answer What is the probability that there would be more than 18 males in a tutorial group of 25 students? (4dp)

suppose that you are in a class of 18 students and It is assumed that 15%...

suppose that you are in a class of 18 students and It is assumed that 15% of the population is left handed. a. compute probability that exactly 5 students are left handed( 3 decimal places) b. probability that at most 4 students are left handed (3 decimal places) c. probability that at least 6 students are left handed (3 decimal places)

he weights of randomly selected 5 female students and 5 male students are given by the...

he weights of randomly selected 5 female students and 5 male students are given by the following:weights for male students:160,165,152,158,178weights for female students:169,154,158,156,162. Let the weight distributions of male and female students follow N(μ1,σ1) and N(μ2,σ2)respectively. Find the correlation coefficient between the heights of male and female students.(5 points)

Suppose it is reported 23% of Ball State students are out of state. You take a...

Suppose it is reported 23% of Ball State students are out of state. You take a sample of 50 Ball State students and find that 9 of them are out-of-state students, such that LaTeX: \hat{p}=.18 p ^ = .18 . If you want to test for whether or not the percent of Ball State students is less than the reported 23%, which of the following is the null and alternative hypotheses for this test? LaTeX: H_0 \colon p=.18 ; H_A...

Suppose that there is a class of n students. Homework is to be returned to students,...

Suppose that there is a class of n students. Homework is to be returned to students, but the students’ homework assignments have been shuffled and are distributed at random to students. a) Calculate the probability that you get your own homework back. (I think it is 1/n) b) Suppose that I tell you that another student, Betty, got her own homework. Does this change the probability that you get your own homework, and if so what is the new probability?...

Suppose that there is a class of n students. Homework is to be returned to students,...

A group of deaf college students (approximately 10 male and female students, aged 19-23 years) has...

A group of deaf college students (approximately 10 male and female students, aged 19-23 years) has requested a speaker on birth control. You have been given the assignment. With your new found knowledge of people who are hearing impaired or deaf,describe the steps you would take to plan for this presentation. Be as specific as you can in answering this question. Construct three learning objective, and then select three or more appropriate presentation/health communication/instruction method related to contraception education that...

56 randomly selected male students at a commuter college were asked if they lived with their...

56 randomly selected male students at a commuter college were asked if they lived with their parents. 24 responded yes. 51 randomly selected female students at the same college were asked if they lived with their parents. 21 responded yes. The Dean of Students believes that more male students than female students live independently of their parents. Test the dean’s assumption. Use α=.05 1. Pooled sample proportion & compute the test statistic (Population 1 is Males, Population 2 is females)...

Subjects