Question

lesson 1 practice problems
1 this two - way table shows the results of asking students if they prefer to have gym class in the morning or the afternoon.
grade 6: morning 15, afternoon 8, total 23
grade 8: morning 18, afternoon 21, total 39
grade 10: morning 12, afternoon 26, total 38
total: morning 45, afternoon 55, total 100
a. how many students participated in the survey?
b. how many students in grade 8 prefer to have gym in the morning?
c. how many grade 10 students participated in the survey?
d. how many students prefer to have gym in the afternoon?
2 a random sample of students are asked about their preferences for games. complete the two - way table so that it has the characteristics listed.
. 122 people responded to the survey.
. 50 of the people who said they prefer board games said they also prefer two - player gar
. 68 people prefer two - player games.
. 56 people prefer card games rather than board games.
board games: 2 players 50, 3 or more players
card games: 2 players, 3 or more players
algebra 1 • unit 3 • section a • lesson 1

Explanation:

Step1: Analyze question a

The total number of students is the sum of all students. From the table, the total is \(100\).

Step2: Analyze question b

Looking at the row for Grade 8 and the column for Morning. The value is \(18\).

Step3: Analyze question c

Looking at the row for Grade 10. The total for Grade 10 is \(38\).

Step4: Analyze question d

Looking at the column for Afternoon. The total is \(55\).

Answer:

a. \(100\)
b. \(18\)
c. \(38\)
d. \(55\)