Question

Find the standard deviation of the given probability distribution. In a certain town, 35% of adults have a college degree. The accompanying table describes the probability distribution for the number of adults (among 4 randomly selected adults) who have a college degree. x | P(x) 0 | 0.1785 1 | 0.3845 2 | 0.3105 3 | 0.1115 4 | 0.0150 ? = [ ] persons Round to one decimal place.

          Find the standard deviation of the given probability distribution.
In a certain town, 35% of adults have a college degree. The accompanying table describes the probability distribution for the number of adults (among 4 randomly selected adults) who have a college degree.
x | P(x)
0 | 0.1785
1 | 0.3845
2 | 0.3105
3 | 0.1115
4 | 0.0150
? = [ ] persons
Round to one decimal place.

Find the standard deviation of the given probability distribution.
In a certain town, 35% of adults have a college degree. The accompanying table describes the probability distribution for the number of adults (among 4 randomly selected adults) who have a college degree.
x | P(x)
0 | 0.1785
1 | 0.3845
2 | 0.3105
3 | 0.1115
4 | 0.0150
? = [ ] persons
Round to one decimal place.

Added by Madison H.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Robin Corrigan

05/08/2023

Step 1

First, we need to find the mean (μ) of the distribution. Since there are 4 adults, we can calculate the mean as follows: μ = P(x=0) * 0 + P(x=1) * 1 + P(x=2) * 2 + P(x=3) * 3 + P(x=4) * 4 μ = 0.1785 * 0 + 0.3845 * 1 + 0.3105 * 2 + 0.1115 * 3 + 0.0150 * 4 μ = 0 Show more…

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Find the standard deviation of the given probability distribution. In a certain town, 35% of adults have a college degree. The accompanying table describes the probability distribution for the number of adults (among 4 randomly selected adults) who have a college degree. Round to one decimal place.