52. In a class of 12 boys and 9 girls, the teacher selects three students at random to write problems on the board.
What is the probability that all the students selected are boys? (Round your answer to four decimal places.)
52. In a class of 12 boys and 9 girls, the teacher selects three students at...
A class has 12 boys and 18 girls. The teacher selects 3 boys and 3 girls to act has representatives to the student government. How many different ways can the teacher select the 6 students? In a game of poker, five players are each dealt 5 cards from a 52-card deck. How many ways are there to deal the cards?
9. (4) A math class has 7 girls and 5 boys in the ninth grade and 5 girls and 5 boys in the tenth grade. Jessica Hathaway, the teacher randomly selects a ninth grader and a tenth grader from the class for a competition at the Pi-Byte Club. What is the probability the students she selects are both boys? Write your answer as a fraction in simplest form.
A class has 12 boys and 18 girls. The teacher selects 3 boy and 3 girl to act as representatives to the student government. How many ways can the teacher select the 6 students? Can u please answer this using a permutation
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 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)...
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)...
Mean and Standard Deviation of Boys or Girls Worldwide, the proportion of babies who are girls is about 0.49 . Let the random variable X represent the number of girls in four children. Find the mean and standard deviation of this random variable. Enter the exact answer for the mean, and round your answer for the standard deviation to three decimal places.
In a group of 20 boys and 18 girls, three people are chosen at random. What is the probability that 1 girl and 2 boys are selected? Make sure your answer is between 0 and 1
A fifth grade teacher assumes that 15% of her students are late for class. If the teacher is accurate, what is the probability that the proportion of late students in a sample of 555 students would be less than 14%? Round your answer to four decimal places.
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...