Question
In: Statistics and Probability
Consider the diamonds data set. How many diamonds are there in the dataset with a cut...
Consider the diamonds data set. How many diamonds are there in the dataset with a cut considered Premium?
4906
12082
13791
21551
1610
Solutions
Expert Solution
If you are talking about Diamonds data set present in R,
Please find the summary of data set below:
There are 13791 diamonds with
Premium cut.
Option C is correct
orchestra answered 2 years agoRelated Solutions
R Language library(tidyverse) data(diamonds) (a) How many diamonds have a `Very Good` cut or better? ...
R Language
library(tidyverse)
data(diamonds)
(a) How many diamonds have a `Very Good` cut or better?
- Note that cut is an *ordered factor* so the levels are in
order.
(b) Which diamond has the highest price per carat (ppc = price /
carat)? What is the value?
(c) Find the 95th percentile for diamond price.
- Try the `quantile()` function.
(d) What proportion of the diamonds with a price above the 95th
percentile and have the color `D`...
3 dplyr Let’s work with the data set diamonds : data(diamonds) head(diamonds) A) Calculate the average...
3 dplyr
Let’s work with the data set diamonds :
data(diamonds)
head(diamonds)
A) Calculate the average price of a diamond:
[your code here]
B) Use group_by() to group diamonds by color, then use
summarise() to calculate the average price and the standard
deviation in price by color:
[your code here)
C) Use group_by() to group diamonds by cut, then use summarise()
to count the number of observations by cut:
[your code here]
D) Use filter() to remove observations with a...
In R: Consider dataset “juul” from library “ISwR”. (juul is a built in data set) Are...
In R:
Consider dataset “juul” from library “ISwR”. (juul is a built in
data set)
Are the means of igf1 equal among
tanner groups at 5% level?
Please use the six step process to
test statistical hypotheses for this research problem.
Note: You need to convert tanner from
numeric to factor type and ignore all the NAs.
Assignment: Install and load the ggplot2 package. load the "diamonds" dataset RCode: install.packages("ggplot2") library(ggplot2) ?diamonds 1....
Assignment:
Install and load the ggplot2 package.
load the "diamonds" dataset
RCode:
install.packages("ggplot2")
library(ggplot2)
?diamonds
1. Explore the dataset & state insights
2. Create plots for dataset
3: Provide summary of descriptive stats)
4. Run the regressions, research, Investigate & comment on
R^2 & on regression plots - 1 line each.
#===========================================
# DV = Price, IV or IVs = your choice
# Can we create and compare models to predict "Price"?
# Question- Investigate & comment on R^2 &...
Assignment: Install and load the ggplot2 package. load the "diamonds" dataset RCode: install.packages("ggplot2") library(ggplot2) ?diamonds 1....
Assignment:
Install and load the ggplot2 package.
load the "diamonds" dataset
RCode:
install.packages("ggplot2")
library(ggplot2)
?diamonds
1. Explore the dataset & state insights
2. Create plots for dataset
3: Provide summary of descriptive stats)
4. Run the regressions, research, Investigate & comment on
R^2 & on regression plots - 1 line each.
#===========================================
# DV = Price, IV or IVs = your choice
# Can we create and compare models to predict "Price"?
# Question- Investigate & comment on R^2 &...
Assignment: Install and load the ggplot2 package. load the "diamonds" dataset RCode: install.packages("ggplot2") library(ggplot2) ?diamonds 1....
Assignment:
Install and load the ggplot2 package.
load the "diamonds" dataset
RCode:
install.packages("ggplot2")
library(ggplot2)
?diamonds
1. Explore the dataset & state insights
2. Create plots for dataset
3: Provide summary of descriptive stats)
4. Run the regressions, research, Investigate & comment on
R^2 & on regression plots - 1 line each.
#===========================================
# DV = Price, IV or IVs = your choice
# Can we create and compare models to predict "Price"?
# Question- Investigate & comment on R^2 &...
The dataset ‘diamondpricesbyrater’ (available in Canvas) contains information on the prices of samples of diamonds rated...
The dataset ‘diamondpricesbyrater’ (available in Canvas)
contains information on the prices of samples of
diamonds rated by agencies IGI and by HRD. Use R to conduct a
hypothesis test to determine if there is a
difference in the mean price of diamonds rated by the two
agencies. State your hypotheses and conclusions.
diamondpricesbyrater.txt
IGI HRD
823 3778
765 3432
803 3851
803 3346
705 3130
725 3995
967 3701
1050 3529
967 3667
863 3202
800 3256
842 3415
800...
Using the data set, construct a histogram of the sales data. Is the data set unimodal or multimodal? Is the dataset left skewed, right skewed, or symmetric?
SALES
3119.192
3975.566
4871.707
6854.398
7695.537
6700.062
6868.331
6236.983
4631.669
3923.082
3116.163
2903.342
3362.867
4870.157
5787.586
6256.58
7381.073
8491.757
6865.594
6376.925
5719.524
4507.048
3527.814
3428.527
4079.148
5088.518
5889.149
7452.386
8106.338
8222.292
8188.105
7271.335
5996.201
4741.099
4043.184
3638.955
4386.81
5415.423
6842.519
8376.721
8602.59
8163.972
7908.729
7751.455
6289.906
5492.67
4599.471
4061.198
Using the data set, construct a histogram of the sales data. Is
the data set unimodal or multimodal? Is the dataset left skewed,
right skewed, or symmetric?
Prices of diamonds are determined by what is known as the 4 Cs: cut, clarity, color,...
Prices of diamonds are determined by what is known as the 4 Cs: cut, clarity, color, and carat weight. The prices of diamonds go up as the carat weight increases, but the increase is not smooth. For example, the di?erence between the size of a 0.99 carat diamond and a 1 carat diamond is undetectable to the naked human eye, but the price of a 1 carat diamond tends to be much higher than the price of a 0.99 diamond....
This is a maching learning question. Using the Kaggle diamonds dataset, build a KNN based estimator...
This is a maching learning question.
Using the Kaggle diamonds dataset, build a
KNN based estimator for estimating the price of a
diamond and propose an appropriate K value.
Please use python and google
colab format. Thank you!
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