Question

complete parts (a) and (b) below.
the number of dogs per household in a small town
dogs: 0, 1, 2, 3, 4, 5
probability: 0.676, 0.203, 0.078, 0.023, 0.012, 0.007

(a) find the mean, variance, and standard deviation of the probability distribution.
find the mean of the probability distribution.
\\(\mu = 0.5\\) (round to one decimal place as needed.)
find the variance of the probability distribution.
\\(\sigma^2 = 0.8\\) (round to one decimal place as needed.)
find the standard deviation of the probability distribution.
\\(\sigma = \\) (round to one decimal place as needed.)

Explanation:

Calculate the standard deviation from the variance

$$ \sigma = \sqrt{\sigma^2} = \sqrt{0.8} \approx 0.8944 $$

Round to one decimal place

$$ \sigma \approx 0.9 $$

Answer:

Find the standard deviation of the probability distribution.
\(\sigma =\) <blank>\(0.9\)</blank> (Round to one decimal place as needed.)