The difference of five times a number and one is 24 find the number

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Ответ:

adrianwoods1507

20.09.2020

Mathematics

The mean of given probability distribution is 1.50

Step-by-step explanation:

We are given the following information in the question:

Hours Studies(x): 0.5 1 1.5 2 2.5

Probability P(x): 0.07 0.2 0.46 0.2 0.07

We have to find the mean of the above probability distribution.

Formula:

$\text{Mean} = \sum x_i\times P(x_1)$

Putting the values, we get,

$\text{Mean} = \sum x_i\times P(x_1)\\= (0.5\times 0.07) + (1\times 0.2) + (1.5\times 0.46) + (2\times 0.2) + (2.5\times 0.07)\\= 0.035 + 0.2 + 0.69 + 0.4 + 0.175\\= 1.50$

Thus, the mean of given probability distribution is 1.50

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