Questions 1. (1) How many observations are collected? (2) How many variables are collected? (3) write down quantitative

[answerhappygod]

Questions 1. (1) How many observations are collected? (2) How
many variables are collected? (3) write down quantitative variables
(4) write down qualitative variables 2. [Visual Description] Make
frequency tables and histograms for the following variables and
describe each shape of the histogram 2.1.Age (The bin should be
10s, 20s, 30s, …, 90s) 2.2.Friends (Appropriate bin width) 3.
[Numerical Description] For each variable, (1) calculate the mean,
median, and mode. (2) Which, if any, of these three measures is the
most appropriate indicator of each variable? 4. [Numerical
Description] For the following variables, (1) Calculate the mean
and standard deviation, (2) Standardize the data. (3) How many
outliers are there? 4.1. Age 4.2. Friends 5. [Inferential
Statistics] (1) Construct a 95 percent confidence interval for the
true mean of the following variables and (2) write down the
standard error of the mean and margin of error 5.1. Age 5.2.
Friends