Suppose the local Best Buy store averages 480 customers per day entering the facility with a standard deviation of 110 customers. A random sample of 48 business days was selected. What is the probability that the average number of customers in the sample is less than 500

The probability that the average number of customers in the sample is less than 500  

  P(x≤500) = 0.1038

Step-by-step explanation:

Step(i):-

Given average of customers per day 'μ' = 480

Standard deviation of  customers 'σ'    = 110

Given sample size 'n' = 48

Let x = 500

Step(ii):-

The probability that the average number of customers in the sample is less than 500

P(x≤500) = P(z≤-1.26)

              =  0.5 - A(1.26)

             =   0.5 -0.3962

            =  0.1038

Conclusion:-

The probability that the average number of customers in the sample is less than 500  = 0.1038

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

step-by-step explanation:

i think something is missing in your question because y-1=(x-12) would not pass through the point (-4,-3). because if you replace x by -4 your are supposed to find y=-3 which is not the case her. if you replace x by -4 you find =-15.

i assume the right equation is y-1=1/4*(x-12) because this one is passing through both your points (if you are interested to know how i found that out i can tell you).

in this equation if i replace x by -4 i find y=-3 and if i replace x by 12, i find y=1 so the line representing this equation is passing through those 2 points.

then the standard form of the equation is finding an expression of y in function of x

y-1=1/4*(x-12)

y=x/4-3+1

y=x/4-2

hope that .

do you confirm there was a mistake in the question?