Answer:
A. Simple random sample, E. Stratified sample F. Cluster Sample
Explanation:
Probability sampling is a sampling techniques that choose a sample or a group from a larger population. Examples of this sampling techniques include: Simple random sample, stratified sampling, cluster sampling, systematic sampling among others.
Probability sampling basically gives the population an equal chance of been selected as a representative sample.
Answer:
A : adjusted trial balance; after
Explanation:
As we know that the trial balance shows an equal balance in both the debit and credit side
The adjusted trial balance also does the same but it would be prepared when the adjusting entries are passed.
In both, the trial balance, the total of debit and the credit columns should always be equaled and matched
Hence, the correct option is a.
Answer:
Question 1: The most correct option is option D, which is 0.0133
Question 2: Her data is a random sample from the population of interest.
Explanation: For the first question;
Standard error I the error in the standard deviation. To calculate standard error the formula is used.
S.E = Sd/√n
S.E = standard error
Sd= standard deviation = 0.2
n = number of occurrence = 180
The proportion of the regular users of vitamin among the 180 people is the standard deviation between them.
Using equation above.
S.E = 0.20 ÷ √180 =
0.20 ÷ 13.42 = 0.0149
S.E is 0.0149, when compared to the options, the most correct option is 0.0133, because the question states the answer to be approximately to which of the option.
QUESTION2:
Her research will have much error, because she chooses the car to count. Therefore the research procedure has not satisfied the process that will produce an accurate result. Since she has choosed the street to be her population of interest, all the cars in the street should be counted.
This is not a randomized controlled research, so selection of cars to count is not necessary.
