INTRODUCTION TO INTERNET OF THINGS WEEK 12 ASSIGNMENT SOLUTIONS(NPTEL 2021)

 INTRODUCTION TO INTERNET OF THINGS WEEK 12 ASSIGNMENT SOLUTIONS(NPTEL 2021)

1) How many types of data analysis exist?

answer) b) 2

2) Which of the following deals with categorical data?

answer) c) both qualitative and quantitative

3) Which of the following does not fall under principles of quantitative analysis?

answer) c) predict things

4) Which of the following uses statistical analysis for making descriptions?

answer)  b) quantitative

5) which of the following is true?

answer) a) quantitative precision and error limits ; qualitative: interviews and field notes

6) which of the following is true for qualitative analysis?

answer) d) smell , taste , colour

7) Visualizing data helps in speeding up the decision making process?

answer) a) true

8) In statistical model of representation of the form (X,P) , what does P represent?

answer) b) Set of probability distributions on x

9) Which of the following is true for a complete model in statistics?

answer) a) number of equations and variables should be same

10) In contrast to qualitative models, statistical models do not require  descriptive method.

answer) b) false

11) Fill in the blanks. ANOVA is best suited for comparing _______ populations or samples.

answer) b) more than 2

12) Which of the following probability distribution is necessary for the populations in ANOVA?

answer) c) normal distribution

13) Which of the following is true for null hypothesis in F ratio?

answer)b)  Greater than 1 for false and 1 for true

14) Fill in the blanks. When all  the data is same , the value of statistical dispersion is ______

answer) a) 0

15) Which of the following represents squared deviation of a random variable from mean?

answer) c) variance