a. Bob is wondering about people that use the Love Library. Bob stands outside the library and asks people walking by into the library questions. b. Alice wants to know how 7th graders and 8th graders at Lemon Grove Middle school feel about mathematics they are learning. Alice gives numbers to each name of 7th and 8th graders learning mathematics. Alice uses these numbers to make an interval. With this interval, Alice uses a random number generator to produce the numbers, which will be associated to names. The names produced by this method will be the students Alice asks questions to. c. Bob wants to know certain things about people working for a company X. Bob goes to this company's location from 9am to 10am and asks every worker some questions. Bob also at 4pm to 5pm and asks every worker some questions. goes

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Explain the sample strategy and potential bias for these
a. Bob is wondering about people that use the Love Library. Bob stands outside the library and
asks people walking by into the library questions.
b. Alice wants to know how 7th graders and 8th graders at Lemon Grove Middle school feel
about mathematics they are learning. Alice gives numbers to each name of 7th and 8th graders
learning mathematics. Alice uses these numbers to make an interval. With this interval, Alice
uses a random number generator to produce the numbers, which will be associated to names. The
names produced by this method will be the students Alice asks questions to.
c. Bob wants to know certain things about people working for a company X. Bob goes to this
company's location from 9am to 10am and asks every worker some questions. Bob also goes at
4pm to 5pm and asks every worker some questions.
N
W
Transcribed Image Text:a. Bob is wondering about people that use the Love Library. Bob stands outside the library and asks people walking by into the library questions. b. Alice wants to know how 7th graders and 8th graders at Lemon Grove Middle school feel about mathematics they are learning. Alice gives numbers to each name of 7th and 8th graders learning mathematics. Alice uses these numbers to make an interval. With this interval, Alice uses a random number generator to produce the numbers, which will be associated to names. The names produced by this method will be the students Alice asks questions to. c. Bob wants to know certain things about people working for a company X. Bob goes to this company's location from 9am to 10am and asks every worker some questions. Bob also goes at 4pm to 5pm and asks every worker some questions. N W
99%
c. Bob wants to know certain things about people working for a company X. Bob goes to this
company's location from 9am to 10am and asks every worker some questions. Bob also goes at
4pm to 5pm and asks every worker some questions.
d. Bob didn't quite get the information he wanted about the previous company in that survey.
Bob reformats his questions before going back to the company. Bob goes to this company at no
specific time intervals and asks every third cubicle some questions.
Transcribed Image Text:99% c. Bob wants to know certain things about people working for a company X. Bob goes to this company's location from 9am to 10am and asks every worker some questions. Bob also goes at 4pm to 5pm and asks every worker some questions. d. Bob didn't quite get the information he wanted about the previous company in that survey. Bob reformats his questions before going back to the company. Bob goes to this company at no specific time intervals and asks every third cubicle some questions.
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