Question

IF E be an event such that P(E) is
3/7 , what is P (not E ) equal to​

Answer 1

Hope it helps  u✴✴❤✴✴

Answer 2

$\large \bold{ \underline{ \underline{ \: Answer : \: \: \: }}}$

$\to \bold{P ( Not \: E ) = \frac{ \: 4 \: \: }{ \: 7 \: } }$

$\large \bold{ \underline{ \underline{ \: Explaination : \: \: \: }}}$

Given ,

$\to$ P (E) = 3/7

We know that ,

$\large \bold{ \fbox{ \fbox{ \: \: P (E) + P ( Not \: E ) = 1</p><p> \: \: }}}$

So ,

$\to \bold{P ( Not \: E ) = 1 - P (E)} \\ \\ \to \bold{P ( Not \: E ) = 1 - \frac{3}{7} } \\ \\ \to \bold{P ( Not \: E ) = \frac{7 - 3}{7} } \\ \\ \to \bold{P ( Not \: E ) = \frac{ \: 4 \: \: }{ \: 7 \: } }$