What kind of data does a scatterplot use?

In the following,what is the number 0.01: t₍₅₈₎ = 5.015,p < 0.01?

A) test statistic
B) t value
C) degrees of freedom
D) significance level

At a hospital in 1998,674 women were diagnosed with breast cancer.Five years later,88% of the Caucasian women and 83% of the African American women were still alive.A researcher concludes that being Caucasian causes women with breast cancer an increased chance of surviving five years.Since there is no random assignment and there may have been lurking variables,this conclusion is not justified.Which of the following are possible lurking variables?
I: Income
II: Neighborhood where patient lives
III: Quality of health care
IV: Diet
V: Number of years surviving since diagnosis

A) I,II,III,IV,V
B) I,III,IV
C) I,IV
D) I,II,III,IV
E) II,IV

What types of values are most likely to be seen in a normal distribution?

A) values very close to the mean
B) values very far from the mean
C) very high values
D) very low values

When considering measures of central tendency,the presence of outliers would indicate that the mean may not be a good representation.

Jake purchased a $100,000 182-day T-bill discounted to yield 5.5%. When he sold it 30 days later, yields had dropped to 5.0% simple interest. How much did Jake earn? (Taken from CIFP course materials.)