45 extra points a researcher posts a radio advertisement offering $35 in exchange for participation in a short study. the researcher accepts the first eight people who respond to the advertisement. which of the following statements is true about the sample?

its a short study is the answer

A or D.

Step-by-step explanation:

a. It is a valid sample because the first eight people were selected to participate.

b. It is not a valid sample because it is not a random sample of the population.

c. It is a valid sample because money was offered to participants.

d. It is not a valid sample because it is only a short study.

are these your choices?

if so, I would say A or D.

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step-by-step explanation:

1. 3.4/4

2. 0.8/7

3. 0.5 x 3

4. 0.9 x 6

5. 10.8

6. 2.35

7. 0.567

8. 9.35

9. 0.02

10. 0.06

11. 0.16

12. 0.42

13. 0.63

14. 5.6

15. 8.1

16. 9.9

17. 0.28

18. 0.48

19. 0.27

20. 0.49

21. 0.45

22. 0.72

23. 0.9

24. 0.88

25. 0.75

26. 0.16

27. 0.328

28. 0.495

29. 0.72

30. 1.068