How would you use the lottery method to select 3 students out of 10 in your class?
The names of all the 10 students of the class are written on 10 separate pieces of paper of equal size and all the slips are folded in a similar manner. These slips are then mixed well and 3 slips with these names are selected one by one, so that all the students have equal chance of being selected in the sample.
Does the lottery method always give you a random sample explain Class 11?
Answer. Yes, lottery method always gives a random sample. In random sampling, the items which get selected are beyond the control of the investigator, it depends entirely on chance. Each and every unit in the population has an equal chance of being selected.
Which of the following methods give better results and why?
Sample Method gives better results than the Census Method due to the following reasons. 1. … Therefore, despite the sampling method providing lesser reliable results (as not all units are studied) yet the sampling method is efficient in the sense that errors committed can be easily located.
What is lottery method?
With a lottery method, each member of the population is assigned a number, after which numbers are selected at random. … Because individuals who make up the subset of the larger group are chosen at random, each individual in the large population set has the same probability of being selected.
Does a lottery method always give you a random sample explain?
Yes, the lottery method always gives a random sample’s outcome. In a random sample, each individual unit has an equal chance of getting selected. Similarly, in a lottery method, each individual unit is selected at random from the population and thereby has an equal opportunity of getting selected.
How do you select random sampling?
There are 4 key steps to select a simple random sample.
- Step 1: Define the population. Start by deciding on the population that you want to study. …
- Step 2: Decide on the sample size. Next, you need to decide how large your sample size will be. …
- Step 3: Randomly select your sample. …
- Step 4: Collect data from your sample.
How is census method better than sample method?
Census, is a very time-consuming method of survey, whereas, in the case of sampling, the survey does not take much time. The census method requires high capital investment as it involves the research and collection of all the values of the population. Unlike sampling which is a comparatively economical method.
Which of the following methods gives accurate results?
Accuracy- Although census method provides more accurate and reliable results as compared to the sample method but in the sample method the errors can be easily located and rectified in the sampling methods due to the smaller number of items.