Question

Bart takes a random sample of 50 students in his seventh-grade class and finds that 40% of the sample prefers chocolate ice cream over vanilla ice cream. There are 200 students in the seventh grade. Based on the sample proportion, about how many students in the seventh grade would be expected to prefer chocolate ice cream over vanilla ice cream?

40
80
50
200
i need help

Answer 1

im looking

Answer 2

okay

Answer 3

i think 40 cuse more like chocolate

Answer 4

no it is not 40 i did the question and 40 wasn't the answer

Answer 5

oh ok wait let me go get my other thing i will brb

Answer 6

idk it going to be the second one or the third one

Answer 7

okay can you help me on another

Answer 8

ok?

Answer 9

Carla wants to know how many students in her school enjoy watching reality TV shows. She asks all 22 students in her science class and finds that 40% of her classmates enjoy watching reality TV shows. She claims that 40% of the school's student population would be expected to enjoy watching reality TV shows. Is Carla making a valid inference about her population?

No, it is not a valid inference because her classmates do not make up a random sample of the students in the school
No, it is not a valid inference because she asked all 22 students in her science class instead of taking a sample of the students in her school
Yes, it is a valid inference because she asked all 22 students in her science class
Yes, it is a valid inference because her classmates make up a random sample of the students in the school

Answer 10

and the answer for the first one is 80

Answer 11

yeah cuse it was 200 who pick chocolate or somthing and u round to the nerset of vanilla ice cream and u get 80

Answer 12

yeah

Answer 13

are you still gonna help me on the second question?

Answer 14

yeah

Answer 15

okay