Answer:
78.46
Step-by-step explanation:
Given that
Pop. Standard deviation = 1.61
Sample standard deviation = 2.15
Sample mean = 7.47
Sample size = 45
Recall that
Test stat for chi square
= (n - 1) (sample standard dev/pop standard dev)^2
= 45 - 1 (2.15/1.61)^2
= 44(1.3354)^2
= 44 × 1.78329
= 78.46
Answer:
Associative
Step-by-step explanation:
3 x 4 =12 and 12 x 2 =24
Since there aren't any exponents the x,y, and z gets added together giving you 24 xyz
Answer:
y=x-3 (assuming your graph is counting by ones)
Step-by-step explanation:
Slope is 1, I chose two points.
0,-3 and 4,1
Then found the slope with those two points, which was 1.
Then I find the y-intercept, which is where the line and point crosses the y axis, which was -3.
So, I made my equation.
So 161 divide 7 equals 23 so therefor he types 23 words per minutes. 23 times 20 equals 460. I think he can type 460 words in 20 minutes.
Answer:Each Y could equal 12
Step-by-step explanation:
You would divide each side of the equation y 3 to get y^2=144.
Next take the root of both sides to get y= ± 12
After that just separate the solutions and get 12.
(I hope this helps. I tried)
