CUET Mathematics - Which of the following statements are correct? (A) The method of least squares determines the position of the trend line of the given time series. (B) The trend line is called the line of best fit. (C) The line of best fit is a line in which the sum of deviations of the actual values of the variable from their corresponding trend value is always positive. (D) The normal equations of the trend line y = a + bx are y = na + b x, x * extand xy = a x + b x^2, where n is the numbers of observations. Choose the correct answer from the options given below: | PYQs + Solutions

CUET Mathematics 2025 13 May Shift 1

Statistics & Applications

Medium

applied

(A), (B) and (C) only

(A), (B) and (D) only

(A), (C) and (D) only

(B), (C) and (D) only

✅ Correct Option: 2

Related questions:

13 May Shift 1

If $y = 38.85 + 7.64(x - 2020)$ is the equation of the straight line trend for the following data:

Year $(x)$	2017	2018	2019	2020	2021	2022	2023
Profit (Rs. '000) $(y)$	14	30	26	44	38	56	64

The trend value for the year 2021 by least square method is:

3 June Shift 1

Components of Time Series are

(A) Secular Trend Component

(B) Seasonal Component

(D) Cyclical Component

Choose the correct answer from the options given below:

13 May Shift 1

In which of the following, the time series may show the gradual shifts to relatively higher or lower values over a long period of time?

CUET Mathematics 2025 13 May Shift 1 PYQs