Monday

December 22, 2014

December 22, 2014

Posted by **joi** on Friday, November 11, 2011 at 8:49am.

a) Calculate the probability that both pupils chosen to write the report on the first day are boys.

b) Two boys wrote the report on the first day. They are then exempted from writing the report on the second day.

Calculate the probability that both pupils chosen to write the report on the second day are of the same gender.

**Answer this Question**

**Related Questions**

math - there were 490 altogether in 2 groups. group A consited of only boys and ...

maths - 1. A die labelled A has one face marked 1, one face marked 2 and the ...

psychology - Researchers have found that, during childhood: A) girls' gender ...

Math - Probability -if desks are grouped by 4 and if there are 11 boys and 13 ...

math - In a group of 28, 16 are boys 12 are girls. what fractional part of the ...

math - Two representatives are chosen at random from a group of 100 students ...

Maths Percentage - 2/5 of the children in an art club were girls. 1/4 of the ...

Math - If the ratio of girls to boys on the swim team is 2:3, which of these ...

Math - Mrs.Smith's class has 12 girls and 8 boys. What percent of he class are ...

Math - If the ratio of girls to boys on the track team is 5 to 6 which of these ...