Probability/Additional Topics in Probability and CountingQuestion 46Suppose #a people are chosen at random from a group of #n. What is the probability that all #a would rate their financial shape as poor? (Make the assumption that the #n people are represented by the pie chart.)
]]>2.00000000.333333300#sol<session lang="en" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="en">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>a</mi><mo>=</mo><mi>random</mi><mo>(</mo><mn>8</mn><mo>.</mo><mo>.</mo><mn>12</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>n</mi><mo>=</mo><mi>random</mi><mo>(</mo><mo>{</mo><mn>1100</mn><mo>,</mo><mn>1150</mn><mo>,</mo><mn>1200</mn><mo>,</mo><mn>1250</mn><mo>,</mo><mn>1300</mn><mo>,</mo><mn>1350</mn><mo>,</mo><mn>1400</mn><mo>}</mo><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>r</mi><mo>=</mo><mi>n</mi><mo>*</mo><mn>0</mn><mo>.</mo><mn>14</mn></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>sol</mi><mo>=</mo><mfrac><apply><csymbol definitionURL="http://www.wiris.com/XML/csymbol">V</csymbol><mi>r</mi><mi>a</mi></apply><apply><csymbol definitionURL="http://www.wiris.com/XML/csymbol">V</csymbol><mi>n</mi><mi>a</mi></apply></mfrac><mo>+</mo><mn>0</mn><mo>.</mo><mn>0</mn></math></input></command></group></library></session>#solm, s, g, sr, E, K, mol, cd, rad, h, min, l, N, Pa, Hz, W, J, C, V, Ω, F, S, Wb, b, H, T, lx, lm, Gy, Bq, Sv, katM, k, c, m, y, z, a, f, p, n, µ, d, da, h, G, T, P, E, Z, YtextFieldaddand]]>