Question

A) What percentage of 8th grade girls take the bus? Show all your

calculations.

b. What percentage of 8th grade boys walk to school? Show all your calculations.

C. How many 8th grade students bike to school on an average day?

D. Are boys or girls more likely to get to school on a bus? How do you know?

E. Assuming this survey was a good representation of 8th graders nationwide, if you surveyed 10,000 8th graders throughout the country, how many of them would you expect to say they get to school by walking? Show all your calculations to justify your answer.

Answer 1

Unable to provide a detailed answer or calculation due to the lack of specific data or numbers given in the student's question. The student is seeking percentages and projections that require concrete data which has not been provided.

Step-by-step explanation:

The given question does not provide enough information for me to give an accurate answer. In order to answer questions regarding the percentage of 8th-grade students who take the bus, who walk to school, or who bike, as well as comparisons between boys and girls, and projections based on survey results, specific data is needed. Without such data provided in the question, I cannot perform calculations or provide percentages.

Regarding the calculation and survey technique examples, these would require concrete numbers to proceed, such as how many students take the bus or bike, or proportions from a survey. To forecast how many students out of a larger population might walk to school, one would apply the proportion found in the given sample to the larger population, multiplying it by the total number, such as 10,000 8th graders nationwide.

Answer 2

Complete table in the right.

a) Percentage of 8th grade girls that take the bus:

Total number of girls in 8th grade: 162

Number of girls in 8th grade that take the bus: 78

If 162 is the 100%, use a rule of three to find the percentage corresponding to 78:

48.15% of the girls in 8th grade take the bus.

b) Percentage of 8th grade boys that walk to school:

Total number of 8th grade boys: 144

Number of boys in 8th grade that walk to school: 28

If 144 is the 100%, use a ruke of three to find the percentage corresponding to 28:

19.44% of the boys in 8th grade walk to school

c) 8th grade students that bike to school: 20 (Total in the table)

d) Number of boys in 8th grade that take the bus: 49

Number of girls in 8th grade that take the bus: 78

As the number of girls that takes the bus is greater than the number of boys that takes the bus, it is more likely that girls get to school on a bus.

e)

Total students in 8th grade survayed: 306

Students in 8th grade that walk to school: 48

Use a rule of three as follow to find how many of 10000 8th grade students you can expect walk to school:

You can expect that from 10,000 8th grade students 1,569 get to school by walking