Q:
What would a researcher say about a coefficient of determination equal to -.48 ?
A The \( 48 \% \) of variance in my dependent variable can be explained by variance in the independent variable
(B) An error is made
(C) The relationship is not statistically significant due to the low value of the coefficient.
(D) Inconclusive results. Post hoc tests are needed.
Q:
13. II contapassi dello smartphone di Andreina registra
che oggi Andreina ha fatto 7500 passi.
a. Quanti kilometri ha percorso Andreina se un suo
passo è di circa 70 cm ?
b. II suo intento è di percorrere 8 km al giorno.
Quanti metri in più o in meno ha percorso rispet-
to al suo proposito?
c. E a quanti passi corrispondono?
Q:
\( \lim _ { x \rightarrow \infty } \frac { e ^ { x } \cdot \operatorname { ch } ( 2 x ) } { \operatorname { sh } ( 3 x ) } \)
Q:
11. Um pacote de ração alimenta 10
papagaios por 12 dias, quantos dias
15 papagaios viverão com um pacote?
\( \begin{array}{ll}\text { a) } 9 & \text { c) } 6 \\ \text { b) } 10 & \text { d) } 8\end{array} \)
Q:
8. Simplifica la siguiente expresión sumando los monomios semejantes:
\[ 2 x^{3}-5 x^{2}+\frac{3}{4} x-\frac{7}{2}+6 x^{3}-2 x^{2}+\frac{1}{4} x+\frac{5}{2}-4 x+3 \]
Q:
If each gridilne represents 1 unit, what is the range of the function graphed above?
A. \( 3 \leq y<\infty \)
B. \( -\infty<y \leq 3 \)
C. \( -\infty<y \leq 2 \)
Q:
A correlation greater than 1 indicates a perfect relationship
(A) True
B) False
Q:
A correlation greater than 1 indicates a perfect relationship
(A) True
(B) False
Q:
Graph the equation.
\[ y=4|x| \]
Q:
(iii. Solve ont if the numbler
450 is divisible by 3
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