Question
Which of the following best describes the difference
between simple moving averages and exponential smoothing in forecasting?Solution
Explanation: Exponential smoothing techniques assign exponentially decreasing weights to older observations, allowing the model to prioritize recent trends and adapt to changes quickly. This feature makes it more effective for dynamic datasets. In contrast, simple moving averages calculate the average over a fixed window, giving equal importance to all points within that window, which can result in lagged responses to new trends. Exponential smoothing is ideal for forecasting in volatile environments where recent changes are more indicative of future outcomes. Option A: Exponential smoothing does consider all past data, but moving averages can also include multiple windows. Option B: Moving averages give equal weight within the window, while exponential smoothing emphasizes recent data. Option C: Both methods can incorporate seasonality adjustments in advanced forms. Option D: Neither method strictly requires decomposition, though they benefit from it.
Select the correct combination of mathematical signs that can sequentially replace the * signs and balance the given equation.
128 * 4 * 12 * 3 * 8 = 20
Select the correct combination of mathematical signs to sequentially replace the * signs and balance the given equation.
24 * 2 * 16 * 2 * 13 = 53
Which two signs should be interchanged to make the following equation correct?
36 – 36 ÷ 9 + 8 × 4 = 8
Which among the given operators should replace the “%” (in the same order) in the given expression below:
9 % 14 % 9 % 90 % 42 % 15
If '+' means '×', '×' means '-', '÷' means '+', and '-' means '÷', select the number from the given options that can replace the question mark '?' i...
Select the correct combination of mathematical signs that can sequentially replace the '$' signs and balance the given equation.
6 $ 42 $ 14 $ 6 $ 40 = -16
- If 'P' means 'division', 'Q' means 'subtraction', 'R' means 'addition', and 'S' means 'multiplication', then what is the value of the expression:
{... If '@' means ' X ', '$' means '-', '#' means '÷', and '%' means '+', then what is the value of the expression: [75 % {(169 $ 15) # 11} @ 8]
Select the option that is related to third number-cluster in the same way first and fifth number-cluster is related to second and sixth number-cluster....
Select the correct combination of mathematical signs that can sequentially replace ‘*’ sign and balance the equation given below.
66 * 32 * 8...