some students in grade 7 and grade 8 take a survey about whether they would prefer to join a dance club or a…
some students in grade 7 and grade 8 take a survey about whether they would prefer to join a dance club or a hiking club. the table shows the results. the students want to make a two - way relative frequency table using row totals. complete each row of the table.
Answer
Explanation:
Step1: Calculate relative - frequency for dance club total
To find the relative - frequency of students in the dance club out of the total number of students, divide the number of students in the dance club by the total number of students. The number of students in the dance club is 20 and the total number of students is 50. So the relative - frequency is $\frac{20}{50}=0.4$.
Step2: Calculate relative - frequency for hiking club total
To find the relative - frequency of students in the hiking club out of the total number of students, divide the number of students in the hiking club by the total number of students. The number of students in the hiking club is 30 and the total number of students is 50. So the relative - frequency is $\frac{30}{50}=0.6$.
Answer:
| Dance Club | Hiking Club | Total |
|---|---|---|
| 0.4 | 0.6 | 1.00 |