Question

the table below shows the ages of houses to the nearest year in a neighborhood. using the age of the houses as the random variable, x, which graph shows the probability distribution, px(x), of a randomly chosen house?

Answer 1

Answer:

a on edge

Explanation:

welcome

Answer 2

Probability distributions are used to represent data and their probabilities

The table entry is given as:

Age of House      Number of Houses

1                                         15

2                                        20

3                                         25

4                                        30

Start by calculating the probability of selecting a house that has a certain age.

This is calculated as:

$Pr =\frac{Number\ of\ house}{Total\ number\ of\ house}$

So, we have:

$P(1) = \frac{15}{90} = 0.17$

$P(2) = \frac{20}{90} = 0.22$

$P(3) = \frac{25}{90} = 0.28$

$P(4) = \frac{30}{90} = 0.33$

This means that the graph that represents the probability distribution must show that the probability of 1 is 0.17; 2 is 0.22; 3 is 0.28; 4 is 0.33.

Read more about probability distribution at:

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