What do you understand by the term ‘non-verbal communication’?
See Answer →Define Dispersion as a measure of spread. Discuss various measures of Dispersion.
See Answer →Define Dispersion as a measure of spread. Discuss various measures of Dispersion.
See Answer →Define Dispersion as a measure of spread. Discuss various measures of Dispersion.
See Answer →Discuss several examples of composite index numbers used as indicators of development in real life. Also write the various steps involved while constructing a composite index.
See Answer →To collect data for a study an individual chooses to question people coming out of a mall directly. Identify this technique of collecting data. What is the significance of employing such a sampling technique?
See Answer →Discuss various methods of collecting data for conducting a qualitative research.
See Answer →A research study aims at analysing the economic impact of COVID on the Indian economy. What can be some of the appropriate economic indicators in this case? Also enlist various data sources (primary/secondary) to gather data from in estimating these indicators.
See Answer →A research study aims at analysing the economic impact of COVID on the Indian economy. What can be some of the appropriate economic indicators in this case? Also enlist various data sources (primary/secondary) to gather data from in estimating these indicators.
See Answer →What is meant by a standard score in Statistics? What is the need to calculate such a score?
See Answer →Consider a distribution or a data set with different values of mean, median and mode. Comment upon the shape of such a distribution in terms of the spread of the frequencies. What will be the relation between the mean, median and mode in such a case? Compare the shape of such a distribution with the one whose mean, median and mode are equal to each other.
See Answer →What are the various assumptions considered for running a multiple regression? Are these different from the ones considered under simple regression?
See Answer →An individual is handover a bag filled with balls of different colours. The table below gives the probability that a randomly chosen ball is of a specific colour, along with a missing probability value of picking a ball of white colour.
| Colour | Red | Yellow | Green | Orange | Blue | White |
| Probability | 0.2 | 0.2 | 0.1 | 0.1 | 0.1 | ? |
Answer the following questions:
(i) What value must the missing probability be?
(ii) If a ball is drawn at random from the bag, what is the probability of each of the following events?
I. It is either Blue or Red in colour.
II. It is notYellow in colour
III. It is neither Orange nor White in colour. IV. It is either Blue or Red or Yellow or Green or Orange or White
See Answer →Discuss two different techniques each for conducting—(i) Bivariate analysis and (ii) Multivariate analysis.
See Answer →Discuss two different techniques each for conducting—(i) Bivariate analysis and (ii) Multivariate analysis.
See Answer →A lead-free solder can be made using two different alloys. An important characteristic feature of a solder is its melting point, which is known to follow a Normal distribution. An experiment was conducted using a random sample of 21 pieces of solder made from the two different alloys (1 and 2). In each sample, the temperature at which each of the 21 pieces melted was determined. The mean and standard deviation of the sample for Alloy 1 were M1= 218.9ºC and S1 = 2.7ºC; for Alloy 2 the results were M2 = 215.5ºC and S2 = 3.6ºC. If it is required to test H0: µ1 = µ2 against HA: µ1 ≠ µ2, where µ stands for the population mean, what would be the value of the test statistic?
See Answer →A lead-free solder can be made using two different alloys. An important characteristic feature of a solder is its melting point, which is known to follow a Normal distribution. An experiment was conducted using a random sample of 21 pieces of solder made from the two different alloys (1 and 2). In each sample, the temperature at which each of the 21 pieces melted was determined. The mean and standard deviation of the sample for Alloy 1 were M1= 218.9ºC and S1 = 2.7ºC; for Alloy 2 the results were M2 = 215.5ºC and S2 = 3.6ºC. If it is required to test H0: µ1 = µ2 against HA: µ1 ≠ µ2, where µ stands for the population mean, what would be the value of the test statistic?
See Answer →Airport Code of J.F.Kennedy International Airport at New York City and Washington Dulles International Airport at Washington DC
See Answer →City Code of Brisbane and Venice
See Answer →3 letter Country code of India and Nigeria
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