In exercises 1 - 3, a survey of 2100 students reported that 315 prefer having gym class during the last period of class. 1. What percent of students prefer having a gym during the last period of the day?

2. What is the margin of sampling error? Round your answer to the nearest tenth of a percent.

3. Give an interval that is likely to contain the exact present of all students who prefer to have gym class during the last period.

Explanation is in the file

cutt.ly/nz6VGda

step-by-step explanation:

here's what happens:

1) the graph of f   = x^2 is shifted 2 units to the right.

2) the resulting graph is reflected in the x-axis, so that the parabola now opens down.

3) this final result is transformed up by 5 units.

step-by-step explanation:

*calories burned = (weight)(calorie factor)*

calories burned = 180 (0.65)

calories burned = 117

the calories he used up is 117, which is 65% of his weight.