Q351. \(\mathbf{Passage:}\)

The concept of the Fermi Paradox raises the question of why, given the vast number of potentially habitable planets in the universe, we have not yet observed any extraterrestrial civilizations. Various theories attempt to explain this paradox, ranging from the rarity of intelligent life to the challenges of interstellar communication.

Q.1: What does the Fermi Paradox question?
Q.2: What theories attempt to explain the Fermi Paradox?

Q352. What is the formula for calculating the mean \(\bar{X}\) of ungrouped data?

Q353. Identify the sentence with the correct use of the gerund.

Q354. \(2 \sin{(\frac{5 \pi}{12})} \cos{(\frac{7\pi}{12})} = _{----------} \)

Q355. What is the mean of ungrouped data?

Q356. In a business letter, what does "ATTN" indicate before the recipient's name?

Q357. If \(f(x) = sin(x)\), what is \(f^{'}(x)?\)

Q358. Value of \( \begin{vmatrix} \log_{12}4 & -1 \\ \log_{12}3 & 1 \end{vmatrix} = _{----------}\)

Q359. The group of students ________ excited about the upcoming trip.

Q360. Which abbreviation is commonly used to indicate a document's postscript in a business letter?