Answer:
<u>The correct answer is z = 1.2</u>
Step-by-step explanation:
μ or average income = US$ 3,000
σ or standard deviation = US$ 250
Income in a given month = US$ 3,300
For calculating the z score, we use the following formula:
z = (x – μ) / σ
z = (3,300 – 3,000 / 250)
z = 300/250
z = 6/5 = 1.2
Interpreting z
A Z score tells us how many units of standard deviation (1.2 in this case)from the average a given score is, that is, we do not count in quantity of points, but in quantities of standard deviations. To use the Z score we require the distribution to be normal and to know the average and standard deviation of the scores.
<span>Y = -4x - 18
</span>This is the order pair (-5,2)
Answer:
12
Step-by-step explanation:
If you would like to know the value of N in the equation 0.1 * N = 89.5, you can calculate this using the following steps:
0.1 * N = 89.5 /0.1
N = 89.5 / 0.1
N = 895
Result: The value of N is 895.
Answer:
5/2 i think but i am not sure sorry if its wrong
Step-by-step explanation:
