In each of the following, identify the variables are categorical nominal, or categorical ordinal, or numerical discrete or numerical continuous. 2.Pant size of a randomly selected male as S, M, L, XL, XXL.

Students score on a biology test is an example of which scale of measurement?

How do I calculate the variance and standard deviation of 102, 104, 106, 108, 110?

Let ${\displaystyle p_1}$= population proportion for population 1, ${\displaystyle p_2}$= population proportion for population 2, ... and ${\displaystyle p_k}$= population proportion for population k. Consider the following null hypothesis: ${\displaystyle H_0}$: ${\displaystyle p_1}$=${\displaystyle p_2}$=...=${\displaystyle p_k}$. Which of the following statements is correct?
a. The alternative hypothesis to the null hypothesis stated above must be: ${\displaystyle H_{\alpha }}$: Not all population proportions are equal.
b. If the sample data and the chi-square test computations indicate ${\displaystyle H_0}$ cannot be rejected, we cannot detect a difference among the k population proportions.
c. If the sample data and the chi-square test computations indicate ${\displaystyle H_0}$ can be rejected, we have the statistical evidence to conclude that one or more population proportions differ from the other population proportions.
d. All of the above.

Test for HIV. There's a false positive rate of 0.025 and a false negative rate of 0.08. Let's say a particular patient has a probability of testing positive for HIV of 0.005. The patient gets tested and it's positive. What are the chances that the patient actually has HIV?

An analyst produced the following summary statistics describing a quantitative variable:
n Mean Variance Std. dev. Median Range Q1 Q3
108 79.9 64.63 8.04 79.05 44.7 74 85.4
(a) The smallest value in the data set is 51. Should the analyst consider the value 51 to be an outlier on the low side?
(b) Justify your answer using an appropriate outlier identification rule. If you perform a calculations, give the pertinent calculations. If you create a graph, copy and paste it into the space.

The function ${\displaystyle h=-16t^2+48t}$ represents the height h (in feet) of a kickball t seconds after it is kicked from the ground. a) Find the maximum height of the kickball. b) Find and interpet the axis of symmetry.

Given data points are 28,30,29,26,31 and 30, find standard deviation step by step?