This page contains Syllabus of Statistics I of CSIT.

Title | Statistics I |

Short Name | |

Course code | STA164 |

Nature of course | Theory and Practical |

Second Semester | |

Full marks | 60 + 20 + 20 |

Pass marks | 24 + 8 + 8 |

Credit Hrs | 3 |

Elective/Compulsary | Compulsary |

### Course Description

**Course objectives:**

To impart the knowledge of descriptive statistics, correlation, regression, sampling, theoretical as

well as the applied knowledge of probability and some probability distributions

### Units and Unit Content

- 1. Introduction
- teaching hours: 4 hrs
Basic concept of statistics; Application of Statistics in the field of Computer Science &

Information technology; Scales of measurement; Variables; Types of Data; Notion of a statistical

population

- 2. Descriptive Statistics
- teaching hours: 6 hrs
Measures of central tendency; Measures of dispersion; Measures of skewness; Measures of

kurtosis; Moments; Steam and leaf display; five number summary; box plot

Problems and illustrative examples related to computer Science and IT

- 3. Introduction to Probability
- teaching hours: 8 hrs
Concepts of probability; Definitions of probability; Laws of probability; Bayes theorem; prior and

posterior probabilities

Problems and illustrative examples related to computer Science and IT

- 4. Sampling
- teaching hours: 3 hrs
Definitions of population; sample survey vs. census survey; sampling error and non sampling

error; Types of sampling

- 5. Random Variables and Mathematical Expectation
- teaching hours: 5 hrs
Concept of a random variable; Types of random variables; Probability distribution of a random

variable; Mathematical expectation of a random variable; Addition and multiplicative theorems

of expectation

Problems and illustrative examples related to computer Science and IT

- 6. Probability Distributions
- teaching hours: 12 hrs
Probability distribution function, Joint probability distribution of two random variables; Discrete

distributions: Bernoulli trial, Binomial and Poisson distributions; Continuous distribution: Normal

distributions; Standardization of normal distribution; Normal distribution as an approximation of

Binomial and Poisson distribution; Exponential, Gamma distribution

Problems and illustrative examples related to computer Science and IT

- 7. Correlation and Linear Regression
- teaching hours: 7 hrs
Bivariate data; Bivariate frequency distribution; Correlation between two variables; Karl

Pearson’s coefficient of correlation(r); Spearman’s rank correlation; Regression Analysis: Fitting

of lines of regression by the least squares method; coefficient of determination

Problems and illustrative examples related to computer Science and IT

### Lab and Practical works

S. No. |
(Using any statistical software such as Microsoft Excel, SPSS, STATA etc. whichever convenient). | No. of | practical | problems | |||

1 | Computation of measures of central tendency (ungrouped and grouped data) Use of an appropriate measure and interpretation of results and | computation of partition Values | 1 | ||||

2 | Computation measures of dispersion (ungrouped and grouped data) and | computation of coefficient of variation. | 1 | ||||

3 | Measures of skewness and kurtosis using method of moments, Measures of Skewness using Box and whisker plot, normal probability plot | 2 | |||||

4 | Scatter diagram, correlation coefficient (ungrouped data) and interpretation. Compute manually and check with computer output. | 1 | |||||

5 | Fitting of lines of regression (Results to be verified with computer output) | 1 | |||||

6 | Fitting of lines of regression and computation of correlation coefficient, | Mean residual sum of squares, residual plots | 1 | ||||

7 | Conditional probability and Bayes theorem | 3 | |||||

8 | Obtaining descriptive statistics of probability distributions | 2 | |||||

9 | Fitting probability distributions in real data (Binomial, Poisson and Normal) | 3 | |||||

Total number of practical problems | 15 |