Introduction to Computers: Definition, Types and Evolution In today’s digital world, computers have become an essential part of our daily life. From education and business to communication and research, computers play a crucial role in almost every field. Understanding the basics of computers  is important not only for academic exams like ISS, UPSC, and other competitive exams but also for practical life. What is a Computer? A computer  is an electronic device that: Accepts d

What do you understand by tax havens? Explain how they promote corruption in India.

ISS PREVIOUS YEAR 2016 PAPER-1 SET-A The lifetime of a bulb follows an exponential distribution with mean 100 hours. The bulb is switched on for exactly 4 hours every day and remains switched off for the remaining time. What is the probability that the bulb stops working on or before the 25th day? Options: (a) (1 − e⁻¹) / (1 − e⁻¹⁄²⁵) (b) 1 − e⁻¹⁄²⁵ (c) 1 − e⁻¹ (d) e⁻¹

ISS PREVIOUS YEAR 2016 PAPER-2 SOLUTION SET-A A company used three different methods to train its employees. The number of units of output produced by different employees trained by the three training methods are given below: Method A: 50, 45, 55, 44Method B: 64, 48, 52, 56, 44Method C: 46, 42, 48, 45, 57, 42 The estimate of the population variance within the samples for the different methods is: (a) 25.67 (b) 31.07 (c) 38.646 (d) 39.097

Role of Ministry of Statistics and Programme Implementation (MoSPI) Role of Ministry of Statistics and Programme Implementation (MoSPI) In a country like India, where policy decisions impact millions of people, reliable data  becomes the backbone of governance. The Ministry of Statistics and Programme Implementation (MoSPI)  plays a crucial role in ensuring that data is accurate, timely, and useful for decision-making. MoSPI is the nodal agency of the Government of India  res

Explain the reasons for political turmoil among middle-level castes in recent times seeking OBC reservations in India.

ISS PREVIOUS YEAR 2016 PAPER-1 SET-A To compare the lifetimes of bulbs produced by two companies A and B, one bulb from each company was selected at random and their lifetimes were observed. Assume that the lifetimes follow exponential distributions with: Mean(A) = 1000 daysMean(B) = 800 days What is the probability that the bulb from company B fails before the bulb from company A? Options: (a) 4/9 (b) 5/9 (c) 25/81 (d) 25/41

ISS PREVIOUS YEAR 2016 PAPER-2 SOLUTION A company used three different methods to train its employees. The number of units of output produced by different employees trained by the three training methods are given below: Method A: 50, 45, 55, 44 Method B: 64, 48, 52, 56, 44 Method C: 46, 42, 48, 45, 57, 42 The estimate of the population variance on the basis of the variance among the sample means for the above methods is:

In a country as vast and diverse as India, reliable data is the backbone of effective governance and policy-making. The Statistical System of India plays a crucial role in collecting, processing, analyzing, and disseminating data related to economic, social, and demographic aspects of the nation. From GDP estimation to employment statistics, the system ensures that decisions are based on scientific evidence rather than assumptions.

Where can I join ISS coaching classes in New Delhi? Best ISS Coaching in Delhi – Sunrise Classes If you are serious about cracking the Indian Statistical Service (ISS) exam , choosing the right guidance can make all the difference. Sunrise Classes  is one of the most trusted and specialized institutes for ISS preparation in India, especially known for its strong focus on statistics and result-oriented teaching. Located near Laxmi Nagar Metro Station in Delhi, Sunrise Classes

Importance of Data Quality in Official Statistics

What are the differences between Himalayan rivers and Peninsular rivers? Discuss.

ISS PREVIOUS YEAR 2016 PAPER-2 SOLUTION SET-A

ISS PREVIOUS YEAR 2016 PAPER-1 SET-A 10 balls are placed in 10 boxes independently and uniformly at random. Initially, all boxes are empty. What is the expected number of boxes that remain empty?

Preparing for competitive exams like Indian Statistical Service (ISS) requires dedication, the right strategy, and expert guidance. With the advancement of digital learning, students can now prepare effectively from the comfort of their homes. ISS Online Recording Classes provide a flexible and result-oriented approach to mastering statistics.

In a data-driven world, reliable and authentic data plays a crucial role in policy-making, research, and economic planning. India has a well-structured statistical system supported by various government institutions that generate official data across sectors like population, economy, labor , and development.

 Changing Scenario of Pulses Cultivation and Production in India

Which of the following statements are correct in order to obtain the hypothesis H0:β1=0H_0: \beta_1 = 0H0​:β1​=0 for the modelyi=β0+β1xi+εiy_i = \beta_0 + \beta_1 x_i + \varepsilon_iyi​=β0​+β1​xi​+εi​ ?

A simple random sample of size 10 is selected with replacement from a population of size 100. What is the expected number of unique elements in the sample? Options:(a) 100 × (99/100)¹⁰(b) 100 × [1 − (99/100)¹⁰](c) 100 × (9/10)¹⁰(d) 100 × (1 − 99/100)¹⁰

It is often stressful, overwhelming, and exhausting to prepare for examinations. One of the biggest challenges that students face is to maintain their level of motivation during their examination preparation journey. However, with the right mindset, it is easy to maintain motivation and do your best.