2nd Year Statistics Chapter 16 Online MCQ Test for 12th Class Statistics Chapter 16 (Analysis of Time Series)

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ICS Part 2 Statistics Chapter 16 Online Test

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Question # 1

The secular trend is measured by the method of semi-averages when:

Question # 2

For a least squares linear trend ŷ = a + bx, the Σ(y-ŷ)2 = 0 when

Question # 3

The basic components of a time series are:

Question # 4

The least squares estimates are unbiased estimates of the

Question # 5

Which one is a rough and crude method for measuring secular trend ?

Question # 6

Increase the number of patients in the hospital due to heel stock is:

Question # 7

For a least squares line trend Y = a + bx, the b is the:

Question # 8

Sum of squares of residuals is denoted by

Question # 9

The graph of time series is called:

Question # 10

The straight line is fitted to a time series when the movements in the time series are

Question # 11

In moving average method, we cannot find the trend values of some:

Question # 12

The trend values in freehand curve method are obtained by:

Question # 13

The systematic components of time series which follow regular pattern of variations are called:

Question # 14

Methods of semi-averages gives an

Question # 15

A business cycle has

Question # 16

For a least squares linear trend Y = a + bX

Question # 17

For a least squares linear trend=ŷ= a + b x,

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ICS Part 2 Statistics Chapter 16 Online Test MCQ's

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Sr.# Question Answer
1 The graph of time series is called:
A. Histogram
B. Historigram
C. Straight line
D. Ogive
2 ŷ=a+bx, this line will be called least squares line if it makes=Σ(y-a-bx)2
A. maximum
B. constant
C. minimum
D. variable
3 For a least squares linear trend Y = a + bx, the Σ(Y - Y)2 = 0 when:
A. All the Y-values are positive
B. All the Y-values lie on the line
C. All the Y-values lie above the line
D. None of these
4 The least squares estimates are unbiased estimates of the
A. statistic
B. time series
C. parameters
D. variance
5 For a least squares linear trend ŷ = a + bx, the Σ(y-ŷ)2 = 0 when
A. all the y-values lie on the line
B. all the y-values are positive
C. all the y-+values lie above the line
D. none of these
6 For a least squares linear trend=ŷ= a + b x,
A. Σy <Σŷ
B. Σŷ = 0
C. Σy =Σŷ
D. none of these
7 The secular trend is measured by the method of semi-averages when:
A. Time series contains yearly value
B. Trend is linear
C. Time series contains odd number of values
D. None of them
8 The unsystematic sequence which follows irregular pattern of variations is called:
A. Noise
B. Signal
C. Linear
D. Non-linear
9 Which one is a rough and crude method for measuring secular trend ?
A. free hand curve method
B. semi average method
C. moving averages method
D. least square method
10 In a straight line equation Y = a + bX; a is the:
A. X - intercept
B. Slope
C. Y- intercept
D. None of them

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