Population is being Studied Is Called (امتحان 2023)
Anonymous Quiz
22%
Sample
11%
Survey
4%
Society
63%
Target
A survey that includes every member of the population is called a sample.
Anonymous Quiz
21%
T
79%
F
Random sample, some members of the population may not have any chance of being selected in the sample.
Anonymous Quiz
17%
T
83%
F
Statistics .......... with the sample , Parameters are .........
Anonymous Quiz
2%
change , change
92%
change ,fixed
1%
fixed ,fixed
5%
fixed ,change
if we make interview with 200 Software Engineers in Egypt about the hardness the face in work . that mean
Anonymous Quiz
16%
Population = 200
78%
Sample = 200
3%
Stander deviation = 200
2%
none
.......... is the value of variable
Anonymous Quiz
83%
Observation or measure
9%
Observation or data set
6%
data set or Variable
2%
data set or measure
Which of the following is a quantitative variable?
Anonymous Quiz
10%
Colors in a box of crayons
63%
Finishing time for runners in a race
19%
Top ten spring break destinations
8%
Various caramel candies
Which type of data set consists of observations on a single attribute?
Anonymous Quiz
93%
Univariate data set
2%
Bivariate data set
2%
Multivariate data set
2%
None of the above
Which type of data set consists of observations on two different attributes?
Anonymous Quiz
2%
Univariate data set
3%
Double data set
93%
Bivariate data set
2%
Multivariate data set
مهمين اوي ي جماعه
Discrete Variable:
> Number of siblings a person has
> Number of cars in a parking lot
> Number of books on a shelf
Continuous Variable:
> Age of individuals
> Height of a person
> Weight of an object
Ordinal Variable:
> Education level (e.g., high school, bachelor's degree, master's degree)
> Customer satisfaction rating (e.g., very satisfied, satisfied, neutral, dissatisfied, very dissatisfied)
> Rank in a competition (e.g., first place, second place, third place)
Nominal Variable:
> Colors of cars (e.g., red, blue, green)
> Types of animals (e.g., cat, dog, bird)
> Political affiliation (e.g., Democrat, Republican, Independent)
Discrete Variable:
> Number of siblings a person has
> Number of cars in a parking lot
> Number of books on a shelf
Continuous Variable:
> Age of individuals
> Height of a person
> Weight of an object
Ordinal Variable:
> Education level (e.g., high school, bachelor's degree, master's degree)
> Customer satisfaction rating (e.g., very satisfied, satisfied, neutral, dissatisfied, very dissatisfied)
> Rank in a competition (e.g., first place, second place, third place)
Nominal Variable:
> Colors of cars (e.g., red, blue, green)
> Types of animals (e.g., cat, dog, bird)
> Political affiliation (e.g., Democrat, Republican, Independent)
Which sampling method ensures that each sample has an equal chance of being selected?
Anonymous Quiz
74%
Simple Random Sampling
3%
Stratified Random Sampling
1%
Cluster Sampling
3%
Systematic Random Sampling
18%
All above
In which sampling method are the population subgroups called strata?
Anonymous Quiz
3%
Simple Random Sampling
86%
Stratified Random Sampling
6%
Cluster Sampling
5%
Systematic Random Sampling
What is the first step in cluster sampling?
Anonymous Quiz
66%
Dividing the population into subgroups
6%
Randomly selecting clusters
16%
Selecting a random sample of elements from each cluster
12%
Selecting a random sample of clusters
Which sampling method involves selecting every kth member from a randomly chosen starting point?
Anonymous Quiz
2%
Simple Random Sampling
6%
Stratified Random Sampling
6%
Cluster Sampling
86%
Systematic Random Sampling
Which sampling method is used when the quality control department measures the weight of every I0th cereal box?
Anonymous Quiz
3%
Simple Random Sampling
3%
Stratified Random Sampling
8%
Cluster Sampling
74%
Systematic Random Sampling
11%
All above
Data recorded in the sequence in which they are collected and before they are processed or ranked.
Anonymous Quiz
4%
Data
89%
Raw Data
2%
Information
5%
all
contains information on each member of a sample or population individually.
Anonymous Quiz
12%
Grouped Data
82%
UnGrouped Data
6%
BOTH