Find the standard deviation of this probability distribution. Give your answer to at least 2 decimal placesxP(x)00.310.120.230.4

Complete Question

Find the standard deviation of this probability distribution. Give your answer to at least 2 decimal places

           x        1        2         3           4          5

         P(x)      0     0.31     0.12     0.23       0.4

The value is  

Step-by-step explanation:

From the question we are told that

  The probability distribution is  

           x        1        2         3           4          5

         P(x)      0     0.31     0.12     0.23       0.4

So

                1           4         9          16           25  

Generally the mean is mathematically represented as

=>        

=>        

Generally  

=>  

=>  

Generally the variance of this probability distribution is

Generally the standard deviation of this probability distribution is  

=>    

=>    

the sum of the lengths of any two sides of a triangle is greater than the length of the third side. if you take the three sides of a triangle and add them in pairs, the sum is greater than (not equal to) the third side. if that is not true, then it is not possible to construct a triangle with the given side lengths.

step-by-step explanation:

answer:

125 yards

explanation:

75+50=125. that is my answer