- 1Each day Mr. Samms randomly chooses 2 students from his class to serve as helpers. If there are 15 boys and 10 girls in the class, what is the probability that the two students chosen will be female?
- 2Samms randomly chooses 2 students from his class to serve as helpers
Each day, Mr. Samms randomly chooses 2 students from his class to serve as helpers. There are 15 boys and 10 girls in the class. What is the probability that Mr. Samms will choose 2 girls to be helpers

- 3In a class of 25 students made up of 14 girls and 11 boys, 5 students are needed to participate in relay competition
In a class of 25 students made up of 14 girls and 11 boys, 5 students are needed to participate in relay competition. What is the probability of *choosing* exactley 3 girls to participate in the relay competition?

- 4in class of x students, when 2 more boys and 7 more girls are added, the ratio of boys to girls change from 2/3 to 3/5
in class of x students, when 2 more boys and 7 more girls are added, the ratio of boys to girls change from 2/3 to 3/5. what is the value of x?

- 5
a) In a class of 10 students there are 4 boys and 6 girls
a) In a class of 10 students there are 4 boys and 6 girls. If a committee of 5 is to be selected at random, what is the probability that it consists of 2 boys and 3 girls? Show work and express your answer as a fraction in lowest terms. b) What is the probability that such a committee can be selected if 2 of the boys refuse to serve together? Explain and express your answer as a fraction in lowest terms.

- 6How many of the 28 students in Andy's class are boys, if 4/7 are girls
How many of the 28 students in Andy's class are boys, if 4/7 are girls?

- 7How many of the 28 students in Andy's class are boys, if 4/7 are girls
How many of the 28 students in Andy's class are boys, if 4/7 are girls?

- 8in a class of 18 students at school there are half as many girls as boys
in a class of 18 students at school there are half as many girls as boys. How many girls are in the class? how many boys?

- 9Twelve randomly-chosen students were asked how many times they had missed class during a certain semester, with this result: 2, 1, 5, 1, 1, 3, 4, 3, 1, 1, 5, 18
Twelve randomly-chosen students were asked how many times they had missed class during a certain semester, with this result: 2, 1, 5, 1, 1, 3, 4, 3, 1, 1, 5, 18. For this sample, the median is _____. A. 2.5 B. 3 C. 3.5 D. 2 need help please

- 10a teaher chooses a student at random from a class of 10 boys and 15 girls
a teaher chooses a student at random from a class of 10 boys and 15 girls. Find the odds favor of and for the odds against each event.1. choosing a girl2. choosing a boy i don't understand odds of something please help.........

- 11In this summer school class there are 28 male students and 15 female students
In this summer school class there are 28 male students and 15 female students. An experiment is done that consists of selecting a student at random, and recording their gender. This is done 4 times WITH REPLACEMENT. 1) Fill in the following probability table for the number of female students drawn? X P(x) 0 1 2 3 4 I have tried to use the binomial probability formula (* this means multiplication) P(x)=n!/(n-x)!x!*p^x*q^n-x but i don't know what the probability variable is and i'm tired of going nowhere with this. Thank you so much.

- 12In a classroom of children (10 boys and 8 girls), six students are chosen to go to the blackboard
In a classroom of children (10 boys and 8 girls), six students are chosen to go to the blackboard. What is the probability that no boys are chosen?