Mayer High School's austerity committee wants to estimate the proportion of students that are pleased with the cleanliness of the campus. They consider two methods of obtaining a sample of 400 students from the 2,500 students at the school. Part A: To make the process easier, the committee considers surveying the first 400 students who enter the gym during the school's first pep rally. Identify the type of sampling method proposed and discuss why this sampling method might be biased. Part B: The second method the committee is contemplating involves using a random number generator app to choose a simple random sample of 400 students from a list of 2,500 student names. How could they implement this method?

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step-by-step explanation:

15

step-by-step explanation:

we are given the following expression and we are to solve it and find the product:

-13 × (-5)

solving the given expression in the standard order of solving a mathematical expression, beginning with the opening of brackets and then multiplying the terms and changing their signs.

-3 × -5 = 15 (answer is positive because when negative is multiplied with negative, it gives a positive answer)

answer: 42

use a calculator to find that 845/73 = 11.575

the whole part of the answer is 11. multiply this by 73 to get 11*73 = 803.

subtract that result from 845 to get 845 - 803 = 42

it would open into a square depending on the type of envelope i’m not sure about the second part