Which of these is an example of a random sample?
A.
A phone plan company surveys...
Mathematics, 22.05.2020 19:06 andresduenas72
Which of these is an example of a random sample?
A.
A phone plan company surveys people on the beach to see how well they are receiving service, and uses this information in future advertising.
B.
Customers buying a new cell phone are surveyed about cell phone plans.
C.
Every twentieth caller to an independent radio station receives tickets to a concert.
D.
A phone survey is conducted using twenty names randomly taken from the phone book.
Answers: 2
Mathematics, 21.06.2019 20:20
Select the correct answer. what is the exact value of sin (157.5°)? a. 'sqrt(2 - sqrt(2))/2 b. *"-"'sqrt(2 + sqrt(2))/29 c.'sqrt(2 + sqrt(2))/4" d. "-"sqrt(2 + sqrt(2))/4)
Answers: 3
Mathematics, 21.06.2019 22:50
1. if events a and b are non-overlapping events, how do you find the probability that one or the other occurs? 2. what does it mean if p(a or b) equals 1?
Answers: 2
Mathematics, 22.06.2019 00:30
If you eat 4 medium strawberries, you get 48% of your daily recommenced amount of vitamin c. what fraction of your daily amount of vitamin c do you still need?
Answers: 1
Mathematics, 22.06.2019 02:20
Find the probability that -0.3203 < = z < = -0.0287 find the probability that -0.5156 < = z < = 1.4215 find the probability that 0.1269 < = z < = 0.6772
Answers: 2
Mathematics, 03.12.2020 20:10
Mathematics, 03.12.2020 20:10
Mathematics, 03.12.2020 20:10
Mathematics, 03.12.2020 20:10
Social Studies, 03.12.2020 20:10