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BCS-040 SOLVED ASSIGNMENT FOR IGNOU BCA 4th SEMESTER 2017-18 SESSION

IGNOU BCA BCS-040 Solved Assignment 2017-18



IGNOU BCA SOLVED ASSIGNMENT 2017-18
BCS-040 Statistics Techniques

QUESTIONS SOLVED IN ASSIGNMENT:
1. In a study on the Per capita Income for a particular year in a city, the following weekly
observations were made.
Per Capita Income (Rs.) -(1K=1000)
14K-15K 15K-16K 16K-17K 17K-18K 18K-19K 19K-20K
Number of Weeks 5 10 20 9 6 2
Draw a histogram and a frequency polygon on the same scale
2. Do you find any correlation between ages and playing habits of the students, whose distribution
according to age groups is given in the following table
Age of groups(Years) 15-16 16-17 17-18 18-19 19-20 20-21
Number of Students 200 270 340 360 400 300
Number of Regular players 150 152 170 180 180 120
3. Data are given below shows statistics viz. standard deviation & average marks secured by
students, in the examination of subject A and B
SUBJECT A SUBJECT B
MEAN MARKS 36 85
STANDARD DEVIATION 11 8
Assuming the Coefficient of correlation between A and B = ±0.66
Perform the following tasks:
i) Determine the two equations of regression
ii) Calculate the expected marks in A corresponding to 75 marks obtained in B.
4. Calculate 2-sigma and 3-sigma upper and lower control limits for means of samples 4 and
prepare a control chart for a drilling machine, which bores holes with a mean deviation of
0.5230 cm and a standard deviation of 0.0032 cm.

5. Construct 5- yearly moving averages from the following data
YEAR 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
SALE 105 107 109 112 114 116 118 121 123 124 125 127 129
6. In 120 throws of a single dice, following distribution of faces (F0) was observed.
FACES 1 2 3 4 5 6 TOTAL
F0 30 25 18 10 22 15 120
From the given data, verify that the hypothesis “dice is biased” is acceptable or not.
7. a) If X is a Poisson variate and p(X = 3)> p(X = 2) then find the minimum value of mean.
b) Ten individuals are chosen at random, from a normal population and their weights (in kg) are found
to be
63, 63, 66, 67, 68, 69, 70, 70, 71 and 71. In the light of this data set, test the claim that the
mean weight in population is 66 kg at 5% level of significance.
8. From a population of 20,000 observations, a sample of 500 observations is selected. Calculate
the standard error of sample mean if the population standard deviation equals 20.
9. A random sample of 700 units from a large consignment showed that 200 were damaged. Find
95% confidence interval for the proportion of damaged unit in the consignment.
10. Two floppies are selected at random without replacement from a box containing 7 good and 3
defective floppies. Let A be the event that the first floppy drawn is defective, and let B be the
event that the second floppy drawn is defective.
(i) Find the conditional probabilities P(B/A) and P(B/AC)
(ii) Show that P(B) = P(B/A). P(A) + P(B/AC) P(AC) = P(A).
(iii) Where Ac = complement of event A.
14. Explain the following with the help ofan example :
(a) Goodness of fit test
(b) Test of Independence
(c) Criteria for a good estimator
(d) Time Series analysis and its categories
(e) t – distribution
(f) F – distribution
(g) CHI - SQUARE distribution
15. Differentiate between the following (any two) :
(a) Linear systematic sampling & circular systematic sampling.
(b) Z - Test & T – Test
(c) Correlation and Regression
16. List the advantages and disadvantages of using a sampling approach instead of a census approach for studying the characteristics of data.. Explain any two of the following sampling approaches:
(a) Cluster sampling
(b) Stratified sampling
(c) Systematic sampling






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MCS-013 SOLVED ASSIGNMENT FOR IGNOU BCA AND MCA 2017-18 SESSION

IGNOU BCA MCA SOLVED ASSIGNMENT 2017-18
MCS-013 Discrete Mathematics

QUESTIONS SOLVED IN ASSIGNMENT:
Question 1 (a) Explain different logical connectives with the help of examples.
(b) Make truth table for followings:
i) p→(q ~ r) (~p ~r)   
ii) p→(r ~ q)   (~p ~q) 
(d) Explain logical equivalence with the help of example.

Question 2
(a) Write down suitable mathematical statement that can be represented by the following symbolic properties.
i) ( x) ( y) ( z) P   
ii) ( x) ( y) ( z) P   
(c) What is indirect method of proof? Example with example.
(d) What is relation? Explain equivalence relation with the help of an example.

Question 3
(b) Find dual of Boolean Expression for Q, in the figure given below.
Figure 1: Logic Circuit
(c) Explain De Morgan’s laws in relation to Boolean Algebra.
(d) What is principle of mathematical induction? Explain with the help of an example.

Question 4
(a) How many different committees can be formed of 12 professionals, each cont…

BORUTO NARUTO NEXT GENERATIONS EPISODE 25 ENGLISH SUB (Download or Watch Online)

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Boruto and his classmates head to the Village Hidden in the Mist in the Land of Water for a field trip. Kagura Karatachi is chosen as the village guide. About the same age as Boruto, Kagura is already an accomplished shinobi and serves as an aide to the Mizukage, Chojuro. Once known as the Blood Mist Village, it's now more modern and bustling than anyone could have imagined. However, dissatisfaction exists among some Hidden Mist Shinobi.
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About VideoSeries Name: Boruto : Naruto Next GenerationsEpisode Name: "The Turbulent School Trip!!"
(波乱の修学旅行!!) Episode Number: 25Director: Noriyuki Abe, Hiroyuki YamashitaMain Character: Boruto UzumakiDate of Broadcast: September 20 2017Season Number: 1

BCSL-021 SOLVED ASSIGNMENT FOR IGNOU BCA 2nd SEMESTER 2017-18 SESSION

IGNOU BCA SOLVED ASSIGNMENT 2017-18
BCSL-021 C Language Programming

QUESTIONS SOLVED IN ASSIGNMENT:
1. Write an interactive program which prompts the user with the following options on the opening menu:
1) Student Information
2) Course Material Despatch Status
3) Fee Status (Paid or Due for Payment)
4) Time Table for Theory Counselling
5) Time Table for Practical Counselling
6) Assignment Submission Schedules
7) Change of the Correspondence Address
8) General Queries
9) Quit Enter your choice:
If an “1” is entered, prompt the student for the enrolment number and display the student information containing the details the semester he registered for, year of study, name of the programme, batch, duration details, name of the study centre, name of the regional centre, details regarding the fees s/he paid etc . If “2” is entered course material despatch status should be displayed whether it was sent or due for despatch. If “3” is entered fee status for the particular semester should be displ…