An e-learning company prepares online exams for students. it wants to test a new type of question on its target audience and needs to ensure that the students will not skip the new question. based on the responses, the company will determine whether the new question type is appropriate. which method should the company use to obtain accurate data for its study?

Placing the new question at the start or at the end of the test will definitely invalidate the accuracy of the data. This is because the 1st and the last questions are the most noticeable part in a given set. Therefore the answer to this question is that “The Company should randomly introduce the new question type among other questions in the test”. 

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)

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step-by-step explanation: