IGNOU MMPC-005 June 2026 Previous Year Question Paper

Q1.Discuss the validity of the statement : “A secondary source is not as reliable as a primary source”. Also, discuss the various sources of secondary data. Point out the precautions to be taken while using such data.

Q2.What do you understand by measuring variability ? Discuss the importance of measuring variability for managerial decision-making. [ 3 ]

Q3.The means of two large samples of sizes 1000 and 2000 are 67.5 and 68.0 respectively. Test the equality of th e means of the two samples each with a standard deviation of 2.5. (Given the tabulated value of test statistic at required level of significance is 1.96).

Q4.A card is drawn from a pack of 52. What is the probability that it is a diamond or jack ? (Note t hat in a pack of cards there are 13 diamonds and 4 jacks).

Q5.Assume the mean height of soldiers to be

Q6.22 inches with a variance of 10.8 inches.

Q7.How many soldiers in a regiment of 1000 would you expect to be over 6 ft. tall ? Assume a normal distributi on. (Given that [ 4 ] MMPC–005 the area between mean and your calculated value is 0.3749).

Q8.Write short notes on any three of the following :

(a) Types of classification of data

(b) Bayes’ Theorem

(c) Systematic Sampling

(d) Chi-square distribution

(e) Opinion polls

Q9.What is correlation ? Mention its properties.

Q10.Explain the implication of positive and negative correlation. Show by means of scatter diagram, the presence of perfect [ 5 ] MMPC–005 positive, perfect negative correlation and zero correlation.

Q11.In trying to evaluate the effectiveness of its advertisement campaign, a firm compiled the following information : Year expenditure Sales (lakh `) 2015 12 5.0 2016 15 5.6 2017 15 5.8 2018 23 7.0 2019 24 7.2 2020 38 8.8 2021 42 9.2 2022 48 9.5 [ 6 ] MMPC–005 Calculate the regression equation of sales on advertisement expenditure. Estimate the probable sales when advertisement expenditure is ` 60 thousand. [ 7 ] MMPC–005 ekLVj vkWQ fctusl ,MfefuLVªs'ku@ekLVj vkWQ fctusl ,MfefuLVªs'ku (cSafdax vkSj foÙk)@ekLVj vkWQ fctusl ,MfefuLVªs'ku bu gsYFk ds;j ,.M gkWLihVy eSustesaV@ekLVj vkWQ fctusl ,MfefuLVªs'ku (ykWftfLVd ,.M lIykbZ pSu eSustesaV)@ekLVj vkWQ fctusl ,MfefuLVªs'ku (dUlVªD'ku eSustesaV) (,e-ch-,-@,e-ch-,Q-@ ,e-ch-,-lh-,u-) l=kar ijh{kk twu] 2026 ,e-,e-ih-lh-&005 % çca/kdh; vuqiz;ksx ds fy, ek=kRed fo'ys"k.k le; % 3 ?k.Vs vf/kdre vad % 100 (Hkkfjrk % 70%) [ 8 ] MMPC–005 uksV %

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