Answer:
Step-by-step explanation:
Hello!
a.
Given the data corresponding the variables:
x 2 6 6 7 9
y 3 2 6 9 5
The Scatterplot is attached.
b.
To compute the correlation coefficient you need several auxiliary calculations:
∑X= 30
∑X²= 206
∑Y= 25
∑Y²= 155
∑XY= 162
r= 0.429 ≅ 0.43
c.
The critical value for r has n-2 degrees of freedom, let's say for example you have α:0.05
For a two-tailed test.
Because the correlation coefficient is <u>positive</u> and the absolute value of the correlation coefficient, _<u>0.43</u>___, is <u>not greater</u> than the critical value for this data set,_<u>0.878</u>__, <u>no </u>linear relationship exists between x and y.
I hope it helps!
2/3% converted to a fraction is 1/150
:)))
The y-intercept would be 1.90
Answer:
A cube with sides of 5 cm holds 5 layers of 25 cm cubes.
A cube with sides of 10 cm could hold 10 layers of 100 cm cubes.
Step-by-step explanation:
For Cube a
Edge length = 10cm
Hence,
Volume = (side length)³
Volume = (10cm)³
= 1000cm³
For cube b
Side/Edge length = 5cm
Volume of cube = (5 cm)³
= 125 cm³
Gerardo statement is wrong.
Therefore, the correct explanation is given as:
A cube with sides of 5 cm holds 5 layers of 25 cm cubes.
A cube with sides of 10 cm could hold 10 layers of 100 cm cubes.
Answer:
b
Step-by-step explanation: