Explain in detail “Importance & Scope of Statistics”
[7 marks]Explain the following terms: 1. Statistics 2. Parameter 3. Variable 4. Pareto diagram 5. Polygon 6. Contingency Table 7. Histogram
[7 marks]Explain empirical relationship between Median and Mode.
[7 marks]Write a Note: Principles of measurement.
[7 marks]Compute the mean of the following frequency distribution using step deviation method. Class 0-11 11-22 22-33 33-44 44-55 55-66 Frequency 9 17 28 26 15
[8 marks]Compute the lower and upper quartiles for the following distribution: No. of Marks group students 5-10 10-15 15-20 20-25 25-30 30-35 35-40 40-45
[2 marks]Explain Skewness and Kurtosis.
[7 marks]Explain various Algebraic measures of Variation
[7 marks]Calculate the S.D. and coefficient of variation (C.V.) for the following table: Class 0-10 10-20 20-30 30-40 40-50 50-60 60-70 70-80 Frequency 5 10 20 40 30 20 10
[5 marks]From the above table calculate karl peason’s correlation co-efficient. Production 100 102 104 107 105 112 103 99 Unemployed 15 12 13 11 12 12 19 26 Page 1 of
[2 marks]Write a note: Type of correlations.
[7 marks]R1 1 2 3 4 5 6 7 8 9 10 11 R2 2 3 5 1 9 10 11 12 8 7 6 Calculate rank correlation from the above table.
[4 marks]Fit a linear regression equation to suggest owner the weekly rate at which his sales are rising. Week 1 2 3 4 5 Sales(in Rs. 2.69 2.62 2.80 2.70 2.75 2.81 1000’s)
[6 marks]Explain following terms: 1. Independent event 2. Complementary event 3. Sample space
[7 marks]What is the probability that a randomly chosen card from deck of cards will be either a king or a heart?
[7 marks]Explain rule of addition and Multiplication.
[7 marks]Aproblem in business statistics is given to five students, A,B,C,D, and E. Their chances of solving it are ½, 1/3, ¼, 1/5, 1/6 respectively. What is the probability that the problem will be solved? Page 2 of
[2 marks]