Mr. sanchez surveyed classes to aid in planning the end-of-year party. for the first sample, mr. sanchez surveyed every third person on each first-period class roster. for the second sample, mr. sanchez surveyed his five honors math classes. which statement about mr. sanchez’s samples is true? end-of-year party survey sample 1 - water park 21 - bowling/arcade 36 - zoo 16 - dance & dinner 27 sample 2 - water park 36 - bowling/arcade 28 - zoo 24 - dance & dinner 12 a. sample 1 is biased. b. sample 2 is biased. c. both samples are biased. d. neither sample is biased.

b. Sample 2 is biased

Step-by-step explanation:

For the first sample, he seemingly took a small group of persons. He might have taken approximately 10-15 random persons. Even though the number is relatively small compared to the total amount of people he could survey and didnt. The sample is randomized and the number is decent enough to make a decision.

For the second sample, not only did he surveyed a small group of students, but also a very specific one: the 5 honors math classes. That group of persons isnt very randomized and the way they think globally might differ to the way all the classes think globally. As a result, the survey results may end up being biased.  

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step-by-step explanation:

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3x + 18 = 147°

step-by-step explanation:

3x + 18 = 147°, because the value of the central angle is equal to the value of the arc formed by it.

i hope i you.