P( A) = 2/5
P(B) = 2/5
P( A or B) = 3/5
P(A and B) = P(A) + P(B) - P( A or B)
= (2/5) + (2/5) - (3/5)
= 1/5
Students Liking a Class The probability that students A and B will like a class is...
Students Liking a Class The probability that students A and B will like a class is 2/5 and 175 respectively. Find P( A and B) if The probabilities are of the events are independent The probability that B likes the class given that A likes the class is 1/2 Students Liking a Class The probability that students A and B will like a class is 2/5 and 1/5 respectively. Find P( A or B) if The probabilities of the events...
Students Liking a Class The probability that students A and B will like a class is 2/5 and 175 respectively. Find P( A and B) if The probabilities are of the events are independent The probability that B likes the class given that A likes the class is 1/2 Students Liking a Class The probability that students A and B will like a class is 2/5 and 1/5 respectively. Find P( A or B) if The probabilities of the events...
The table below shows whether students in an introductory
statistics class like dogs and/or cats.
a) What is the marginal distribution (in %) of “liking
dogs”?
b) What is the conditional distribution (in %) of “liking dogs”
for students who like cats?
c) Do “liking dogs” and “liking cats” appear to be independent?
Give statistical evidence to support your conclusion.
Please show all work.
Doesn't Like Dogs 21 10 Likes Dogs Likes Cats Doesn't Like Cats 194 110
The probability of a 3rd grader liking cheese is 3/4. The probability of a 3rd grader liking jam is 4/11. The probability of a 3rd grader liking both is 3/11. Are the events "A 3rd grader likes cheese" and "A 3rd grader likes jam" independent? Yes No Not enough info
A statistics class has 26 students. The instructor would like to select a random sample of 3 students to work together on a group project. a. How many different samples are possible? b. If 13 of the 26 students in class are freshmen, what is the probability that all 3 of the selected students are freshmen? Help please
A Math class has only 4 students (A, B, C and D) and they independently attend the class. The probability of them attending is 0.5, 0.6, 0.7, and 0.75, respectively. Find the 1 probability that the total number of attendance on 2 consecutive days is exactly 4?
In a small class of 5 students, what's the probability of 2 students who share the same birth month while the other 3 students have a unique birth month?
A class has five students. What is the probability that exactly two of the students were born on a weekend? What is the number of trials, n, and the constant trial probability, p, for this example? What is the answer to the question given? What are the mean and standard deviation for this situation?
(5.20) A selective college would like to have an entering class of 1200 students. Because not all students who are o↵ered admission accept, the college admits more than 1200 students. Past experience shows that about 70% of the students admitted will accept. The college decides to admit 1500 students. Assuming that students make their decisions independently, the number who accept has the B(1500, 0.7) distribution. If this number is less than 1200, the college will admit students from the waiting...
Enter an inline fraction (a/b) in simplest form. In a class of 10 students there are 4 boys and 6 girls. If a committee of 5 students is selected at random, the probability that it consists of 3 boys and 2 girls is