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The MCQs below are drawn from the Economics subject category.
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111
Given that 40% of voters prefer spending Rs1,000, 25% prefer Rs20,000, and 35% prefer Rs22,000, what are the median, mean, and modal preferred outcomes?
To find the mean: (0.4*1000) + (0.25*20000) + (0.35*22000) = 400 + 5000 + 7700 = 13,100. The mode is the most frequent value, which is 1,000 (40%). The median is the middle value in the ordered distribution; since 40% are at 1,000 and 35% are at 22,000, the 50th percentile falls within the 20,000 group. Thus, the median is 20,000.
112
What is the statistical measure calculated by summing all values and dividing by the total count of observations?
The arithmetic mean is a measure of central tendency calculated by adding all the numerical values in a dataset and dividing that sum by the total number of observations. It is the most commonly used average in statistics, providing a representative value that reflects the overall magnitude of the data points in a distribution.
113
What is the primary function of descriptive statistics in data analysis?
Descriptive statistics are used to summarize and describe the main features of a dataset. They provide simple summaries about the sample and the measures, such as central tendency (mean, median, mode) and dispersion (standard deviation, range). Unlike inferential statistics, they do not aim to make generalizations or test hypotheses about a larger population.
114
Which type of weighting system is utilized in the calculation of the Paasche price index?
The Paasche price index is calculated by taking the ratio of the total cost of a basket of goods at current-year prices to the total cost of the same basket at base-year prices. Because it uses current-year quantities as weights, it reflects the actual consumption patterns of the current period, though it is often criticized for potentially underestimating inflation due to the substitution effect.
115
What is the formula for the Paasche price index, where 'o' denotes the base year and 'n' denotes the current year?
The Paasche price index is a weighted index that uses current-year quantities (qn) as weights. The formula is the sum of current prices multiplied by current quantities divided by the sum of base year prices multiplied by current quantities. It is commonly used to measure inflation by comparing the cost of a current basket of goods to the cost of that same basket in the base year.
116
What is the statistical measure that relates the prices of a group of commodities to their prices during a specific base period?
A price index is a normalized average of price relatives for a given class of goods or services in a given region, during a given interval of time. It is designed to measure the changes in the price level of a basket of goods over time, using a base year as a reference point for comparison.
117
Based on the provided data in Figure 24-1, what is the calculated value of the consumer basket during the base year?
In economic index calculations, the base year is the reference point against which other years are compared. By definition, the value of the consumer basket in the base year is typically set to a specific reference value, often 100 or a specific currency amount like Rs300, to serve as the denominator for calculating the Consumer Price Index (CPI) in subsequent periods.
118
Which time period serves as the reference for weights in a Laspeyres price index?
Source answer preserved: option D (future year). AI attempted to change protected answer data (correct_option), so this item is flagged for manual review before study use.
119
Which economic indicator measures the change in the cost of a fixed basket of goods and services relative to a base period?
The Consumer Price Index (CPI) is the standard measure used to track inflation by monitoring the price changes of a representative basket of consumer goods and services. Although the source provided 'Complete Price Index' as the answer, this is a misnomer for the standard Consumer Price Index. The index is essential for adjusting income payments and evaluating the real purchasing power of currency over time.
120
What is the mathematical formula for the Laspeyres price index, where 'o' denotes the base year and 'n' denotes the current year?
The Laspeyres price index is a method used to measure the change in the cost of a basket of goods over time. It uses the quantities from the base year (qo) as weights. The formula is the ratio of the total cost of the base-year basket at current-year prices (∑Pnqo) to the total cost of the same basket at base-year prices (∑Poqo), multiplied by 100 to express it as an index number.
