Easy · Probability and Two-Way Tables

Easy Probability and Two-Way Tables Questions

This page lists the 8 easy-difficulty questions on Probability and Two-Way Tables, one row per record in the site's question bank (data/questions.json), with each question's score band.

By score band: 400-500 6 of 8, 500-600 2 of 8. The Probability and Two-Way Tables topic page carries all 25 questions on this topic; the other difficulty hubs are easy, medium and hard.

Question	Band
A school surveyed students about a proposed schedule change. Of 35 boys and 58 girls who said yes, and 42 boys and 70 girls who said no, a student is selected at random. What is the probability the student is a girl who said yes?	400-500	Open
A school surveyed students about a proposed schedule change. 46 boys and 59 girls said yes; 49 boys and 55 girls said no. Given that a randomly chosen student said yes, what is the probability the student is a boy?	400-500	Open
A school surveyed students about a proposed schedule change. Of 76 boys and 80 girls who said yes, and 59 boys and 36 girls who said no, a student is selected at random. What is the probability the student is a girl who said yes?	400-500	Open
A school surveyed students about a proposed schedule change. 21 boys and 42 girls said yes; 28 boys and 61 girls said no. Given that a randomly chosen student said yes, what is the probability the student is a boy?	400-500	Open
A school surveyed students about a proposed schedule change. Of 51 boys and 78 girls who said yes, and 24 boys and 39 girls who said no, a student is selected at random. What is the probability the student is a girl who said yes?	400-500	Open
A school surveyed students about a proposed schedule change. 28 boys and 70 girls said yes; 21 boys and 70 girls said no. Given that a randomly chosen student said yes, what is the probability the student is a boy?	400-500	Open
A school surveyed students about a proposed schedule change. Of 57 boys and 74 girls who said yes, and 29 boys and 51 girls who said no, a student is selected at random. What is the probability the student is a girl who said yes?	500-600	Open
A school surveyed students about a proposed schedule change. 72 boys and 23 girls said yes; 70 boys and 80 girls said no. Given that a randomly chosen student said yes, what is the probability the student is a boy?	500-600	Open