Answer: [tex]Probab\imaginaryI l\imaginaryI ty\text{ of 0 ups = 0.2304}[/tex]Explanation:
Probability of landing up (U) = 0.52
Probability of landing down (D) = 0.48
We need to find the probability of getting 0 ups when two thumbtacks is flipped
The probability of getting 0 ups = Probability of getting two downs
[tex]\begin{gathered} Probability\text{ of 2 downs = Pr\lparen landing down\rparen }\times\text{ Pr\lparen landing down\rparen} \\ \\ Probability\text{ of 2 downs = 0.48 }\times\text{ 0.48} \end{gathered}[/tex][tex]\begin{gathered} Probability\text{ of 2 downs = 0.2304} \\ \\ Probability\text{ of 0 ups = 0.2304} \end{gathered}[/tex]