Add the total of both groups and divide by the total number in each group
Group X = 535 / 18 = 29.72 mean
group Y = 500 / 18 = 27.78 mean
Group X has the higher mean
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hope it helps
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Answer:
-12 and -1
Step-by-step explanation:
(-12)+ (-1)= -13
and -12x-1=12. as - x -=+ (minus x minus=plus)
Answer:
Answer:
C
Step-by-step explanation:
Remember when using the inequality sign < or > the line will be dotted so we can immediately eliminate answer choices b and d
Now let us solve for y
6x-2y>-11
step 1 subtract each side by 6x
now we have
-2y>-11-6x
step 2 divide each side by -2
-11-/2=11/2
-6/-2=3
IMPORTANT -when you divide inequalities by a negative number you flip the inequality sign
So now we have
See image below for reference
When the inequality is facing x the solutions are going to be on top of the line
hope this helps!
Step-by-step explanation:
To find how much it went up/down by, you do an equation. In June, it went up by 1.4%. That's a positive number. Down by 4.87 in July (negative), up 3% in August (positive), and down 1.33% in September (negative).
So the equation would be, 1.4-4.87+3-1.33
That gives you the answer of -1.8.
In conclusion, it fell over the four months, by -1.8%.