A line is reflected. Which of these could be the result? Pls help

Which of the symbols correctly relates the two numbers below check all that apply 6? 6

Aproduction manager test 10 toothbrushes and finds that their mean lifetime is 450 hours. she then design sales package of this type of toothbrush. it states that the customers can expect the toothbrush to last approximately 460 hours. this is an example of what phase of inferential statistics

For the inequality |c| < |d| to be true, which of the following must be true?