Question

The probability distribution for arandom variable x is given in the table.-105101520Probability.2015051.25115Find the probability that -5 < x < 5

Answer 1

P = 0.30

Step-by-step explanation:

From the table, we see that:

When: x = -5, Probability = 0.15

When: x = 0, Probability = 0.05

When: x = 5, Probability = 0.1

Therefore, the probability of -5 ≤ x ≤ 5 is obtained by the sum of the probabilities from -5 to 5, we have:

`\begin{gathered} P=0.15+0.05+0.10 \\ P=0.30 \end{gathered}`

Therefore, the probability is 0.30