Questionnaire is a list of questions prepared by the investigator on the subject

Question

Questionnaire is a list of questions prepared by the investigator on the subject of enquiry.

Options:

A . True

B . False

Answer: Option A
:
A
The given statement describes questionnaires correctly.

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Question 1. A market survey was conducted to study the effectiveness of a new feature in a smart phone. For this purpose, a sample o....people actually attended the survey. This is a type of ___.

Question 2. If the mean of the set of number x1,x2...xn is ¯x ,then the mean of the number xi+2i,1≤≤n is&#x....is ¯x ,then the mean of the number xi+2i,1≤≤n is

Question 3. If the mean of 3, 4, x, 7, 10 is 6, then the value of x is....

Question 4. If the S.D of a set of observations is 4 and if each observation is divided by 4, the S.D of the new set of observations....the S.D of the new set of observations will be

Question 5. If the coefficient of variation of data pertaining to goals scored by two teams A and B in a football season are 2.5 and....7.2 respectively, then which of the following statements i strue?

Question 6. The mean of n items is ¯¯¯x. If the first term is increased by 1 second by 2 and so on, then ne....1 second by 2 and so on, then new mean is

Question 7. The median of a set of 9 distinct observations is 20.5. If each of the largest 4 observations in the set is increa....is increased by 2, then the median of the new set

Question 8. If the range of discrete data of n observations is zero, then....

Question 9. The coefficient of variation of a distribution is....

Question 10. The means of five observations is 4 and their variance is 5.2. If three of these observations are 1, 2, and 6, then the ....are 1, 2, and 6, then the other two are:

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