x - 100
Calculate the relevant z-score = ----------------
15
130-100 30
Here, this is z = ----------------- = ----------- = 2
15 15
130 would be 2 std. dev. above the mean here.
Your job would be to calculate the area under the std. normal curve to the right of z = 2. Using my TI-83 Plus calculator's built-in normalcdf( function, I found that this probability is 1.00 - 0.977 = 0.023.
What do you mean?
Could you explain please ;)
Answer:
Step-by-step explanation:
Given
80.106
Required
Write in expanded form
First, we need the place value of each digit:
Next, we multiply each digit by its place value, to give the expanded form;
Answer:
55080
Step-by-step explanation:
She makes 54,000 this year
she gets a 2% raise
her increase will be
54000*.02 =1080
The new salary will be
54000+1080
55080
Answer:
x^2+x
--------
x-1
Step-by-step explanation:
x 1
------ ÷ --------
x-1 x+1
Copy dot flip
x x+ 1
------ * --------
x-1 1
x(x+1)
-------
x-1
x^2+x
--------
x-1
