 class="math inline">\(1 - 4\exp\left(-2N^{0.1}\right)=1-4\exp\left(-2 \cdot 2^{0.1P} \cdot M^{0.1}\right)\)</span>, a random sample contains <span class="math inline">\(K_+\)</span> and <span class="math inline">\(K_-\)</span> positive and negative observations, with <span class="math display">\[\begin{equation*}
M - 2^{0.55P}\cdot M^{0.55} \leqslant K_+, K_- \leqslant M + 2^{0.55P}\cdot M^{0.55}.
\end{equation*}\]</span> This shows that <span class="math inline">\(K_+\)</span> and <span class="math inline