Answer: Sample selection bias
Explanation: Sample selection is a term used to describe the various steps and processes through which a researcher was able to determine and collect his or her samples.
Bias is an inclination towards or a prejudice against one or more parties or factors in an experiment or a Research.
SAMPLE SELECTION BIAS IS ONE OF THE MAIN CAUSES OF POOR OR WRONG OUTCOMES DURING A RESEARCH OR AN EXPERIMENT.
Answer:
B. Unfavorable
Explanation:
Variance is use to know the difference between the standard cost which is the budgeted cost and the cost actually incurred and this amount of difference can either be favorable or unfavorable.
The variable overhead efficiency variance is the difference between standard hours for actual output and the actual hours taken at the standard variable overhead rate.
If the direct labor efficiency variance is unfavorable, then variable overhead efficiency variance will also unfavorable because the difference of standard hours for actual production and actual hours will remains the same for both.
Answer:
Return on investment = 50%
Explanation:
Return on Investment is the proportion of investment cost that an investor earns as as return in dollar
For a mutual fund= total return in dollar/investment cost
= (48-32)× 500/(500× 32) × 100
=50%
<em>Note that the gains in dollar is the difference between the selling price at the end and the selling price at the beginnin</em>g.
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