Answer:
Step-by-step explanation:
Daily temp(in F) Cakes sold
42 39
45 52
48 31
54 61
59 72
62 35
64 61
65 34
67 58
75 45
84 24
To find whether there is an association between these two let us find the correlation coefficient between these two variables.
r=-0.1975
Since |r|<0.5, correlation is weak.
Let us test the hypothesis r =0
H0:r=0
Ha:r not equals 0
Test statistic = 
p =0.298
Since p value >0.10, at 90% significance level we accept that there is no association.
Answer:
3 pages per week
Step-by-step explanation:
21 (pages written)/ 7 (amount of days)
21/7= 3
Answer:
.
Step-by-step explanation:
Two vectors
and
are parallel to one another if and only if the ratio between their corresponding components are equal:
.
Equivalently:
.
For the two vectors in this equation to be parallel to one another:
.
Solve for
:
.
would be the only valid value of
; no other value would satisfy the
equation.
Answer:
1 4/7
Step-by-step explanation:
Answer:
No solution 0≠3
Step-by-step explanation:
simplify parenthesis:
4x+4x+3=8x+6
combine like terms:
8x+3=8x+6
subtract three from both sides
8x=8x+3
subtract 8x from both sides
0≠3
This equation has no solution
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