We first calculate the z-score corresponding to x = 1075 kWh. Given the mean of 1050 kWh, SD of 218 kWh, and sample size of n = 50, the formula for z is:
z = (x - mean) / (SD/sqrt(n)) = (1075 - 1050) / (218/sqrt(50)) = 0.81
From a z-table, the probability that z > 0.81 is 0.2090. Therefore, the probability that the mean of the 50 households is > 1075 kWh is 0.2090.
Answer:
Point-slope equation is
y-y1 = m(x-x1)
m is a slope, m=5/4
y1 = -5, x1 = 8
Point-slope equation is
y+5 = 5/4(x - 8).
Step-by-step explanation:
Answer:
there is no picture/screenshot of the table.
Step-by-step explanation:
I could see if I can help but I don't know where the question or the table is.
Answer:
repeat
Step-by-step explanation:
3 divided by 9is 0.333333333333333333333333333333
Answer:
The rate of change is 1 and the y-intercept is 1/2.
Step-by-step explanation: