Jack is conducting a survey on people's streaming service choices in his neighborhood.

Jack is conducting a survey on people's streaming service choices in his neighborhood.

There are 240 students in a school. A survey asked 30 randomly chosen students if they were going to attend the conference at the weekend. Eighteen said yes.

There are 240 students in a school. A survey asked 30 randomly chosen students if they were going to attend the conference at the weekend. Eighteen said yes.

There are 240 students in a school. A survey asked 30 randomly chosen students if they were going to attend the conference at the weekend. Eighteen said yes.

There are 240 students in a school. A survey asked 30 randomly chosen students if they were going to attend the conference at the weekend. Eighteen said yes.

There are 440 families who have one pet either a cat or a dog in a town. You ask 60 randomly chosen families what they have. 21 of 60 families have a dog.

There are 440 families who have one pet either a cat or a dog in a town. You ask 60 randomly chosen families what they have. 21 of 60 families have a dog.

There are 440 families who have one pet either a cat or a dog in a town. You ask 60 randomly chosen families what they have. 21 of 60 families have a dog.

There are 440 families who have one pet either a cat or a dog in a town. You ask 60 randomly chosen families what they have. 21 of 60 families have a dog.