Answer:
y=3/2
Step-by-step explanation:
Answer:
Step-by-step explanation:
1)x/4.1=-2
2)multiplyby 4.1 on both sides x/4.1*4.1=-2*4.1
3) x=-8.2
Answer:
z-score
Step-by-step explanation:
Since we are given the mean and standard deviation of a national test (whole population) it is fair to assume a large population size, and the use of the z-score would be more appropriate, since the z-score is used for the standardization of population data, while the t-score is recommended for samples or small populations.