Statistics BPA Third Year Assignment Marks 50 Q1. Marks obtained in a certain aptitude test by a group of 40 students are given bellow. 57 48 49 42 53 46 48 59 55 45 43 45 46 53 59 50 48 54 58 56 48 56 55 61 48 55 T9 a) Prepare a frequency distribution with group of three unit each (e.g 41 44, 44 47) b) If management decided to select 15% students for admission, then calculate the minimum passing marks. Q.2. a) A multinational company operating in Pakistan pays its employee's weekly basis in US ($00) according to the following schedule. Weekly Wages No. of Employees 10 20 08 20 30 14 30 40 25 40 50 35 50 60 46 60 70 39 70 25 90 17 90 100 08 Determine Mean and S.D weekly wages. b) What should the wage be if 15 % workers earning more. Q3 The grade-point averages of 20 college seniors selected at random from the graduating class are as follows: 3.2 1.9 2.7 2.4 2.8 2.9 3.8 3.0 2.5 3.3 1.8 2.5 3.7 2.8 2.0 3.2 2.3 2.1 2.5 1.9 a) Evaluate the Median of grade point b) Calculate the highest marks of bottom 30% students d) Calculate Qi & Q3. Q4.Following data show the advertising expenditure (X) and sales revenue (y) of a particular industry. X ($100) 5 2 un + Y ($1000) Identify the nature of relationship b/w the variables and calculate the strength of relation. Fit linear relationship b/w the variables. Interpolate and extrapolate the model. Calculate the reliability of the model Identify the model Q. Define the following: ) Statistics b) Descriptive Statistics Parameter and Statistic. d) Inferential Statistics Types of Qualitative and Quantitative Variables. Contingency and Matrix questions