11.01 Venn diagrams and two-way tables
Interactive practice questions
A community center recorded class sign ups, but only kept track of the following information:
- $14$14 adults signed up for pottery
- $29$29 teenagers signed up for classes
- $20$20 people signed up for salsa classes
- $30%$30% of salsa sign-ups were adults
Fill in the table based on the given information about class sign-ups.
| Pottery Class | Salsa Dance Class | Total | |
|---|---|---|---|
| Teenagers | $\editable{}$ | $\editable{}$ | $\editable{}$ |
| Adults | $\editable{}$ | $\editable{}$ | $\editable{}$ |
| Total | $\editable{}$ | $\editable{}$ | $\editable{}$ |
A poll was given where people were asked: "Do you like pineapple on your pizza?" The following information was recorded:
The tree diagram below gives information on a survey of a group of students.
The students were asked if they prefer chocolate ($C$C) or vanilla ($V$V) ice cream. Each of the students was also asked if they prefer sprinkles ($S$S) or hot fudge ($F$F) as an ice cream topping.
The tree diagram below gives information on a survey of a group of students.
The information collected was sorted based on if students were female ($F$F) or male ($M$M). Each of the students shared whether they prefer pizza ($P$P) or hamburgers ($H$H).