In: Statistics and Probability
1) In the study of the impact of the earthquake in the southwest, representative samples from twelve communities and neighborhoods of Guayanilla, Yauco, Lajas and Peñuelas will be selected. The type of sampling used is:
A. Systematic sampling
B. Stratified sampling
C. Probabilistic random sampling
D. Statistics by cluster
2). The frequency of the data that is represented in the
frequency distribution tables as a percentage (%).
A. Absolute frequency
B. Sampling
C. Pie chart (foot)
D. Relative frequency
3. The frequency of the data that is represented in the
frequency distribution tables as a percentage (%).
A. Absolute frequency B. Sampling
C. Pie chart (foot) D. Relative frequency
4. The frequency of the data as a percentage (%) that accumulates
every day on the percentage of people who receive aid due to the
COVD19 pandemic, is
A. Absolute frequency B. Accumulated absolute frequency
C. Cumulative relative frequency D. Relative frequency
5. The selection of fifty residents of the Ponce beach area to
collect information on the damage that occurred to their homes.
This group of residents is
A. Histogram B. Population
C. Sample D. Emigrants
6. The class size if we want to construct a 6-class frequency
distribution will be ____ using a data series whose maximum value
is 89 and minimum value is 48.
A. 41 B. 10
C. 8.5 D. 7
7. The information received from each household on the digital
portal of the Department of Labor is
A. Data B. Polygons
C. Histograms D. Graphs
8. Defined set of ALL INDIVIDUALS, where a certain
characteristic is observed. In Florida, the Puerto Rican _____ is
1,060,000 people (approx).
A. Inferential Statistics B. Sample
C. Population D. Quantitative data
9. To estimate the poverty level of a population, the most
convenient is to look for data on the following:
A. Level of education B. Income of the family group
C. Place of residence D. Minors in the home
10. Type of sampling where the elements are selected from the
population in a uniform interval. It is selected in time interval
(eg Every hour, the Fifth)
A. Systematic sampling B. Stratified sampling
C. Probabilistic random sampling D. Statistics by cluster
11. Data ordering tables where a number of observations are
determined from the data set that fall within each mutually
exclusive class.
A. Frequency distribution B. Trial sampling
C. Fashion and Median D. Population
12. Type of sampling where the study population is divided into
homogeneous (similar) groups, appropriate when the population is
divided into groups (strata) with different characteristics.
A. Systematic sampling B. Stratified sampling
C. Probabilistic random sampling D. Statistics by cluster
13. Choice of population units in such a way that the selections
are the RANDOM, where all the data are likely to be selected.
A. Quantitative data B. Trial sampling
C. Probabilistic random sampling D. Inferential statistics
14. Graph of the frequency distributions where a series of bars is
created that is proportional to the number of elements that fall
within the class.
A. Histogram B. Inferential statistics
C. Representative sample D. Polygons
15. To obtain a width (size) of classes 8, with a series of values
between 140 and 101, the number of classes must be _____.
A. 140 ÷ 8 = 17.5 B. 5
C. 6 D. 140 + 101 = 241/8 = 30.125
16. The _____________ computation seeks to find the value next to
the largest and smallest of the data. This value defines a uniform
value between which the data is located.
A. Number of Classes B. Frequency of Classes
C. Width of Classes D. Midpoint of Classes
17. You work for the Health Department and are asked to present on
a graph the number of people vaccinated per day in the workplace in
the past two weeks. What type of graph would you recommend?
A. Histogram B. Pyramid
C. Circular D. Polygons
The answers are in bold for each question
1) In the study of the impact of the earthquake in the southwest, representative samples from twelve communities and neighborhoods of Guayanilla, Yauco, Lajas and Peñuelas will be selected. The type of sampling used is:
B. Stratified sampling
2). The frequency of the data that is represented in the frequency
distribution tables as a percentage (%).
D. Relative frequency
3. The frequency of the data that is represented in the
frequency distribution tables as a percentage (%).
D. Relative frequency
4. The frequency of the data as a percentage (%) that accumulates
every day on the percentage of people who receive aid due to the
COVD19 pandemic, is
C. Cumulative relative frequency
5. The selection of fifty residents of the Ponce beach area to
collect information on the damage that occurred to their homes.
This group of residents is
C. Sample
6. The class size if we want to construct a 6-class frequency
distribution will be ____ using a data series whose maximum value
is 89 and minimum value is 48.
D. 7 =(89-48)/6=6.83~7
7. The information received from each household on the digital
portal of the Department of Labor is
A. Data
8. Defined set of ALL INDIVIDUALS, where a certain
characteristic is observed. In Florida, the Puerto Rican _____ is
1,060,000 people (approx).
C. Population
9. To estimate the poverty level of a population, the most
convenient is to look for data on the following:
B. Income of the family group
10. Type of sampling where the elements are selected from the
population in a uniform interval. It is selected in time interval
(eg Every hour, the Fifth)
A. Systematic sampling
11. Data ordering tables where a number of observations are
determined from the data set that fall within each mutually
exclusive class.
A. Frequency distribution
12. Type of sampling where the study population is divided into
homogeneous (similar) groups, appropriate when the population is
divided into groups (strata) with different characteristics.
B. Stratified sampling
13. Choice of population units in such a way that the selections
are the RANDOM, where all the data are likely to be selected.
C. Probabilistic random sampling
14. Graph of the frequency distributions where a series of bars is
created that is proportional to the number of elements that fall
within the class.
A. Histogram
15. To obtain a width (size) of classes 8, with a series of values
between 140 and 101, the number of classes must be _____.
B. 5 =(140-101)/8=4.875~5
16. The _____________ computation seeks to find the value next to
the largest and smallest of the data. This value defines a uniform
value between which the data is located.
C. Width of Classes
17. You work for the Health Department and are asked to present on
a graph the number of people vaccinated per day in the workplace in
the past two weeks. What type of graph would you recommend?
A. Histogram