$0\le p<0{,}25$0\le p<0{,}25

$0{,}25\le p\le 0{,}4$0{,}25\le p\le 0{,}4

$0{,}4<p\le 0{,}5$0{,}4<p\le 0{,}5

$p>0{,}5$p>0{,}5