Answer:
$452.4
Step-by-step explanation:
salary distributed with mean value = $490
standard deviation = $45
From the graph attached below the inflection point lies 1 std away from the mean value on a normal curve
The salary that corresponds to p20 using the normal distribution on stat crunch = $452.4
attached below are the required graphs
Basically we need to add and subtract 1/2 from 1/6:
(1) 1/6 - 1/2 = 1/6 - 3/6
= -2/6
= -1/3
(2) 1/6 + 1/2 = 1/6 + 3/6
= 4/6
= 2/3
Therefor the two numbers that are located 1/2 unit from 1/6 are -1/3 and 2/3
Answer:
1.25
Step-by-step explanation:
5 / 4 = 1.25
I hope this helps u! :D
-3x² + 2y² + 5xy - 2y + 5x² - 3y²
Add your like terms.
(-3x² + 5x²) + (2y² - 3y²) + 5xy - 2y
Simplify.
2x² + 5xy - y² - 2y
~Hope I helped!~