Mathematics, 14.02.2020 01:05 mansoorahmedd67
In a poll conducted by a certain research center, 978 adults were called after their telephone numbers were randomly generated by a computer, and 70 % were able to correctly identify the secretary of state. Which type of sampling did the research center use?
a. random.
b. systematic.
c. convenience.
d. stratified.
e. cluster.
Answers: 2
Other questions on the subject: Mathematics
Mathematics, 21.06.2019 15:10, daniiltemkin20
Which equation represents the partial sum of the geometric series?
Answers: 1
Mathematics, 21.06.2019 18:10, chyyy3
The means and mean absolute deviations of the individual times of members on two 4x400-meter relay track teams are shown in the table below. means and mean absolute deviations of individual times of members of 4x400-meter relay track teams team a team b mean 59.32 s 59.1 s mean absolute deviation 1.5 s 245 what percent of team b's mean absolute deviation is the difference in the means? 9% 15% 25% 65%
Answers: 2
Mathematics, 21.06.2019 19:30, markel19
The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 0 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)
Answers: 3
You know the right answer?
In a poll conducted by a certain research center, 978 adults were called after their telephone numbe...
Questions in other subjects:
Social Studies, 05.07.2019 02:30
Business, 05.07.2019 02:30
Mathematics, 05.07.2019 02:30
Social Studies, 05.07.2019 02:30
Health, 05.07.2019 02:30
