Answer:
$1890
Step-by-step explanation:
x= couches
y=chair.
x=2y
2x=3y+270
2(2y) or 4y=3y+270
y=270
x=540
2(540)+3(270)=1890.
Hope this helps :D
Answer:
Step-by-step explanation:
1. none
because of 12 is not divisible by five
Answer:
(0, 4)
Step-by-step explanation:
Use the midpoint formula to find the midpoint.
Answer:
a) There is no significant difference between the mean amounts charged
b) The skewness threatens the validity of the test
Step-by-step explanation:
<em>Given data:</em>
Group n x s
A 150 $1,987 $392
B 150 $2,056 $413
n1 = n2 = 150
x1 = 1987
x2 = 2056
s1 = 392
s2 = 413
∝ = 0.05
Attached below is the detailed solution