Define Statistics. Also discuss the importance and limitations of Statistics.
[5 marks]What is variable? Differentiate between dependent and independent variable along with an example.
[5 marks]Explain different types of Graphs and Charts.
[5 marks]Calculate Mean, Median and mode of the following data:
[5 marks]Calculate Mean and mode of the following data: Class 0 – 5 5 – 10 10 – 15 15 – 20 20 - 25 Frequency 5 9 14 21 16
[5 marks]What is correlation? Discuss different types of correlation.
[5 marks]Write a note on Spearman’s rank correlation method.
[5 marks]The lengths and weights of five units taken from a manufacturing process are given below: Find the correlation coefficient between the length and weight. Length 3 4 6 7 Weight 9 11 14 15 16
[10 marks]Find equation of regression line. X 12 4 11 14 10 9 Y 9 10 8 16 8 5 9
[6 marks]What is time series analysis? Discuss its important components.
[5 marks]Find trend values by three yearly moving average. Year 2016 2017 2018 2019 2020 2021 2022 2023 Y 45 48 54 47 51 58 49 44
[5 marks]Find trend by 5 yearly moving average Year 2016 2017 2018 2019 2020 2021 2022 2023 Sales 34 25 27 40 45 54 50 47
[5 marks]Define the following terms: i. Range ii. Quartiles iii. Discrete variable iv. Continuous variable v. Weighted moving average Page 1 of
[2 marks]Differentiate between population and sample? Why do we do the study on sample instead of population? Give your view on the previous statement.
[5 marks]Write a note on Simple Random Sampling.
[5 marks]Discuss the characteristics of a good sample.
[5 marks]Draw a histogram and a frequency polygon for the given data. Class 0 - 10 10 - 20 20 – 30 30 – 40 40 – 50 50 – 60 Frequency 6 11 17 10 8 Page 2 of
[2 marks]