- 1In 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?

- 2Each 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?
- 3in 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?

- 4
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.

- 5How 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?

- 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?

- 7in 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?

- 8A class is made up of 10 boys and 2 girls
A class is made up of 10 boys and 2 girls. Half of the boys wear glasses. A student is selected at random from the class. What is the probability that the student is a boy with glasses? My Question is, I don't know how to do Probability.

- 9If girls made “A’s” on a ratioof 7 to 5 compared to boys(of course this is not in ourschool), how many “A’s” would the boys make, if the girls made 92
If girls made “A’s” on a ratioof 7 to 5 compared to boys(of course this is not in ourschool), how many “A’s” would the boys make, if the girls made 92?

- 10In a classroom, the students are 12 boys and 6 girls
In a classroom, the students are 12 boys and 6 girls. If one of the students is selected at random, find the probability that the student is a girl

- 11A group of 10 students consists of 3 girls and 7 boys
A group of 10 students consists of 3 girls and 7 boys. How many ways can the students bearranged from left to right if the first 3 students are girls and the remaining students are allboys?

- 12for every 1 there are 3 boys taking class. If there are 236 students how do you predict the number of boys'