Question

score on last try: 0 of 1 pts. see details for more. > next question get a similar question you can retry this question below x p(x) 0 0.2 1 0.3 2 0.25 3 0.25 find the mean of this probability distribution. round your answer to one decimal place. basic fc trig enter a mathematical expression more...

Explanation:

Step1: Recall mean formula

The mean $\mu$ of a discrete - probability distribution is given by $\mu=\sum_{i}x_{i}P(x_{i})$.

Step2: Calculate each product

For $x = 0$ and $P(0)=0.2$, the product is $0\times0.2 = 0$.
For $x = 1$ and $P(1)=0.3$, the product is $1\times0.3=0.3$.
For $x = 2$ and $P(2)=0.25$, the product is $2\times0.25 = 0.5$.
For $x = 3$ and $P(3)=0.25$, the product is $3\times0.25=0.75$.

Step3: Sum the products

$\mu=0 + 0.3+0.5 + 0.75=1.55$.

Answer:

$1.6$