The random variable is the number of houses sold by a realtor in a single month at the Sendsom's Real Estate Office. Its probability distribution is as follows. Find the standard deviation for the probability distribution. Houses sold(x): 0 1 2 3 4 5 6 7
Probability (P(X)): 0.24 0.01 0.12 0.16 0.01 0.14 0.11 0.21

The standard deviation for the probability distribution is of 2.63 houses sold.

Step-by-step explanation:

To find the standard deviation for the distribution, first we have to find the mean.

Mean:

Each outcome multiplied by it's probability. So

Standard deviation:

Square root of the sum of the differences squared between each value and the mean, multiplied by its probabilities. So

The standard deviation for the probability distribution is of 2.63 houses sold.

hey there!

if she's saving for six months, let's divide the total number we need for the trip by six, dividing it into the amount that needs to be saved for each month.

500 ÷ 6 =

she needs to save at least this amount each month, so we should use this symbol: ≥

let x be the amount she saves each month.

your final answer is x ≥

hope this !