Answer:
--- The third quartile
-- Variance
Step-by-step explanation:
Given
-- First quartile
--- Median
--- Mean
--- Coefficient of skewness
Solving (9): The third quartile 
This is calculated from
So, we have:
Cross Multiply
Open bracket
Collect like terms
Divide both sides -1.38
--- approximated
Solving (b): The variance
First, calculate the standard deviation from:
So:
Make SD the subject
So, the variance is:
Answer:
x = 6
y = 0
Explanation:
−2x+y=−12;3y−2x=−12
Rewrite equations:
−2x+y=−12;−2x+3y=−12
Solve −2x+y=−12 for y
−2x+y=−12
−2x+y+2x=−12+2x(Add 2x to both sides)
y=2x−12
Substitute 2x−12 for y in −2x+3y=−12
−2x+3y=−12
−2x+3(2x−12)=−12
4x−36=−12 (Simplify both sides of the equation)
4x−36+36=−12+36 (Add 36 to both sides)
4x=24
Divide both sides by 4
4x / 4 = 24 / 4
x = 6
Substitute 6 for x in y=2x−12
y=2x−12
y=(2)(6)−12
y=0 (Simplify both sides of the equation)
Answer:
split it in half then take that half and split it into 3rds
Step-by-step explanation:
Can i pls have brainliest
$160,105
i think. we can offer the house in $160,105
but am not totally sure abt it
X/2 because he divided the money into two equal parts and gave one part to his brother, so he only has one part of the x divided into two.
hope this helps.........
