# If the probability of a quadrilateral being a square is 0.4, then the probability of the quadrilateral not being a square is 0.6.

## Question

If the probability of a quadrilateral being a square is 0.4, then the probability of the quadrilateral not being a square is 0.6.

✨ Free AI Tools for You

Powered by Chatterbot AI

## Answer

**:**

The correct option is **$\mathbf{C}$** (0.6).

Let $P(S)$ represent the **probability of a quadrilateral being a square**.

Let $P(S')$ represent the **probability of a quadrilateral not being a square**.

Since $P(S)$ and $P(S')$ are **complementary events**, their probabilities add up to 1:
$$
P(S) + P(S') = 1
$$

Given: $$ P(S) = 0.4 $$

Substitute this value into the equation: $$ 0.4 + P(S') = 1 $$

Solve for $P(S')$: $$ P(S') = 1 - 0.4 $$ $$ P(S') = 0.6 $$

Thus, the **probability of a quadrilateral not being a square** is **$0.6$**.

India's 1^{st} AI Doubt Solver for CBSE, JEE, and NEET

and then it's just ₹212 a month