In supervised digital image classification, the number of combinations to be evaluated to select three best bands out of five bands is _____________
In supervised digital image classification, the number of combinations to be evaluated to select three best bands out of five bands is _____________
Show Hint
Correct Answer: 10
Solution and Explanation
We are asked to find the number of combinations of selecting 3 bands out of 5. This is a standard combination problem: \[ ^nC_r = \binom{5}{3} = \frac{5!}{3!(5-3)!} = \frac{5 \times 4 \times 3!}{3! \times 2!} = \frac{20}{2} = 10 \] Final Answer: 10
Top GATE GE Geographic Information System Questions
- Which one of the following statements is NOT correct in the context of Geographic Information System?
The table below is an attribute table about employee records. Which attribute can be used as a primary key?
Employee Name Designation Department (Emp_ID) (Emp_Name) (Emp_Desig) (Emp_Dept) 100260 Prashant Software Developer Information Technology 100265 Dinesh Junior Engineer Embedded System 100252 Somya HR Manager Management 100271 Dinesh Junior Engineer Information Technology - For the weighted least squares adjustment, which of the following statements is/are correct?
The first value in the output of a SQL query (given below) when run on a table having name “Table-1” is?
SQL Query: SELECT LastName FROM Table-1 WHERE State = "IN" ORDER BY FirstNameLastName FirstName StreetNumber StreetName City State Squires Edwin 4589 Shamar Rd. Upland IN Rothrock Paul 91657 Carex Ave. Upland IN Ramirez Douglas 123 Fake St. Springfield IN Peterson Chris 4687 Windthrow Way Kane PA Gibson David 354 Bluestem St. Carbondale IL In a given weighted graph shown below, what is the value of the expression \( (p + d)^2 \), where:
[i.] Alphabets A, B, C, D, E, and F denote the nodes
[ii.] Numbers 1 to 6 denote the weights between two nodes
[iii.] \( d \) = shortest distance between node A and node E
[iv.] \( p \) = number of paths with distance \( d \)
Top GATE GE General Science Questions
- For the weighted least squares adjustment, which of the following statements is/are correct?
In a given weighted graph shown below, what is the value of the expression \( (p + d)^2 \), where:
[i.] Alphabets A, B, C, D, E, and F denote the nodes
[ii.] Numbers 1 to 6 denote the weights between two nodes
[iii.] \( d \) = shortest distance between node A and node E
[iv.] \( p \) = number of paths with distance \( d \)- In a plane triangle, the observed angles \( P, Q \) and \( R \), assumed uncorrelated, with given weights are:
\[ \begin{aligned} P &= 40^\circ 19' 02'' \quad \text{weight} = 1 \\ Q &= 70^\circ 30' 01'' \quad \text{weight} = 2 \\ R &= 69^\circ 11' 00'' \quad \text{weight} = 1 \end{aligned} \]
The most probable values of these angles \( (\hat{P}, \hat{Q}, \hat{R}) \) will be given by: - Which of the following statements is/are correct in the context of Voronoi polygon?
The scattering matrix for a fully polarimetric synthetic aperture radar pixel is given below. The \( C_{11} \) element of the covariance matrix computed with a \( 1 \times 1 \) window will be __________? (rounded off to 2 decimal places).
Here, \( i = \sqrt{-1} \).
\[ \begin{bmatrix} 0.1 + 0.5i & 0.1 - 0.1i \\ 0.1 + 0.1i & 0.3 - 0.5i \end{bmatrix} \]
Top GATE GE Questions
- For a sample drawn from a normally distributed population, the statistic \[ Y = \frac{(n-1)s^2}{\sigma^2} \] where \( n \) = sample size, \( \sigma \) = population standard deviation, and \( s \) = sample standard deviation, has
The reflectance geometry of white-sky albedo can be represented as __________
Clouds appear white in optical visible spectral bands of remote sensing images due to _________ scattering.
- If the absolute temperature (greater than 0 K) of a body is doubled, it would emit \underline{{2cm} times more radiation.}
If the emissivity of an object varies with wavelength, it is called as __________