GATE 2025 Question 64: Game theory and strategic behaviour

Two players $A$ and $B$ are playing a game. Player $A$ has two available actions $a_1$ and $a_2$. Player $B$ has two available actions $b_1$ and $b_2$. The payoff matrix arising from their actions is presented below.

	$b_1$	$b_2$
$a_1$	$-1, 3$	$4, -1$
$a_2$	$3, -4$	$-2, 2$

Let $p$ be the probability that player $A$ plays action $a_1$ in the mixed strategy Nash equilibrium of the game. Then the value of $p$ is ______ (round off to one decimal place)