Last week Sarah had exams in math and in Spanish. On the math exam, the mean was µ = 40 with ? = 5, and Sarah had a score of X = 45 . On the Spanish exam, the mean was µ = 60 with ? = 8, and Sarah had a score of X = 68 . For which class should Sara expect the better grade?
a. Math
b. Spanish
c. The grades should be the same because the two exam scores are in the same location.
d. There is not enough information to determine which is the better grade.
C
You might also like to view...
Brain imaging studies have identified elevated levels of resting blood flow and glucose metabolism in which area of the brain?
a. amygdala b. cerebellum c. parietal lobes d. temporal lobes
It is important to understand how probability works in statistics because ______.
A. it can tell you the likelihood of winning a lottery B. it is used to test our research hypotheses C. hypotheses are based on probability D. we use probability to prove a scientific theory
If you classify individuals by assigning the value 1 to males and the value 2 to females,
you are using ______ measurement. a. nominal b. ordinal c. interval d. ratio
Which of the following stands the greatest risk of being spontaneously aborted or being born stillborn?
A. A single female B. It is completely the result of chance. C. A female twin with a white mother D. A male twin with an African-American mother