ICS Part 2 Statistics Chapter 16 Online Test

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ICS Part 2 Statistics Chapter 16 Online Test

  • Total Questions17

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ICS Part 2 Statistics Chapter 16 Online Test

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Question # 1

Methods of semi-averages gives an

Question # 2

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

Question # 3

For a least squares linear trend Y = a + bX

Question # 4

The unsystematic sequence which follows irregular pattern of variations is called:

Question # 5

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

Question # 6

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

Question # 7

The additive model of the time series is:

Question # 8

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

Question # 9

The trend values in freehand curve method are obtained by:

Question # 10

The graph of a time series is called

Question # 11

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

Question # 12

In a straight line equation Y = a + bX; a is the:

Question # 13

ŷ=a+bx, this line will be called least squares line if it makes=Σ(y-a-bx)2

Question # 14

The equation of the quadratic (parabolic) trend is

Question # 15

The multiplicative time series model is:

Question # 16

For a least squares linear trend=ŷ = a + bx, b is the

Question # 17

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

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