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Statistics
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Questions (22,613)
\, \lambda \sim \textsf{Exp}(\alpha ) \, for some \, \alpha >0 \, and conditional on \, \lambda \,, \, X_1,\ldots ,X_
2 answers
asked anonymously
121 views
The number of visitors to a museum per hour recorded in one day is 106, 122, 134, 150, 120, 92, 75. What is the mean absolute
1 answer
asked by
fnaf
137 views
Before an election, 5,000 voters were asked for their preferences. One thousand two hundred (1,200) said they would vote for
3 answers
asked by
stupid
132 views
Maximum likelihood estimation
The random variables X1,X2,…,Xn are continuous, independent, and distributed according to the
4 answers
asked by
SK
1,900 views
Which of the questions below is a statistical question?(1 point)
Responses What are the ages of the singers in the community
2 answers
asked by
Hann
170 views
A six-sided number cube is to be rolled 30 times. How many times do you expect to roll on an even number?
5 answers
asked by
Math
292 views
Describe Data Sets Practice
Complete this assessment to review what you've learned. It will not count toward your grade. 4 of 54
4 answers
asked by
noodle
113 views
1. What is the correlation coefficient for the following data set? Round to three decimal places.
x 3.0 7.3 4.5 3.3 7.6 y 9.8 8.3
3 answers
asked by
KiriBakuTodoDeku
166 views
The math grades on the final exam varied greatly. Using the scores below, how many scores were within one standard deviation of
3 answers
asked by
Ann
1,055 views
1.What are the mean,median,mode and range of the data set given the altitude of lakes in feet:-9,-36,-23,-8,-17,-52,-27,and-36?
2
100 answers
asked by
stupid lame fat
22,265 views
The table below shows the number of deaths in the U.S. in a year due to a variety of causes. For these questions, assume these
6 answers
asked by
jr
2,003 views
the mean hourly wage of employees at his company using the data in the table. In a report he stated, “The typical salary at
10 answers
asked by
Brasil
4,673 views
2. Given the data 12,39,21,18,24,17,12,25
a what is the outlier in the data? b what is the mean with the outlier? c what is the
22 answers
asked by
Abby
7,659 views
Six whole numbers have
A median of 10 A mode of 11 A range of 4 Work out a possible set of a six numbers. Write the numbers in
7 answers
asked by
Lewis
6,722 views
Maria has the following scores on exams in her social studies class 86, 75, 97, 58, 94, and 58
A. find the mean, median, and mode
32 answers
asked by
FluttershyK22
10,903 views
a company employs 12 gardeners at $26 per day , and 8 clerks at $17 per day. What is the mean daily wage,in dollars,of the 20
5 answers
asked by
Jenna
5,136 views
109, 89, 112, 98, 101, 105, 120, 106. What is the mean absolute deviation of the dataset?
3 answers
asked anonymously
94 views
Determine whether the question is a statistical question. If it is a statistical question, identify the units for the answer.
An
35 answers
asked by
Patrick
1,475 views
The number of bagels sold daily for two bakeries is shown in the table.
Bakery A Bakery B 53 34 52 40 50 36 48 38 53 41 47 44 55
7 answers
asked by
Elena - Help please
7,527 views
Find the measures of center—mean, median, and mode—for the given dataset.
10, 17, 11, 24, 12, 7, 15, 17, 20, 5, 11, 21, 16,
4 answers
asked by
andrew michal mcmahon
107 views
On the six tests in her social studies course, Jerelyn's score were 92, 78, 86, 92, 95, and 91. Determine the median and the
7 answers
asked by
JAsmine
4,362 views
Steam|leaf
5 4,5 6. 0,6,9 7. 2,3,4,5,5 8. 1,2,8,9 9. 5,6 1 what is the range of data 40 42 54 96 2 what is the median of the data
10 answers
asked by
Vigilante
1,231 views
A summary of 24 observations of x gave the following information:
∑(x − a) = −73.2 and ∑(x − a)2 = 2115. The mean of
4 answers
asked by
savya
726 views
The height , in meters, of 500 people are normally distributed with standard deviation 0.080.Given that the heights of 129 of
4 answers
asked by
Raj
1,387 views
How you can quickly calculate the mean of the following test scores without adding the numbers.
76,73,78,75
4 answers
asked by
Tammy
2,320 views
What is the upper quartile of the data set below
25, 8, 10, 35, 5, 45, 40, 30, 20 A. 5 B. 8 C. 9 D. 10
18 answers
asked by
Maddie
3,759 views
Find the area under the normal curve between z=0 and z=1.63
5 answers
asked by
Mariefe
5,336 views
Since the enactment of a smoking ban in a particular city, the number of smokers has slowly declined. Statistics show that the
4 answers
asked by
Cristal
797 views
Which type of correlation is suggested by the scatter plot?
A. Positive correlation B. Negative correlation C. Equal correlation
10 answers
asked by
I'm just an employee
9,602 views
Find the area under the standard normal curve between z = 0 and z = 1.37.
6 answers
asked by
Sharon
4,313 views
Find the area under the normal curve in each of the following cases.
1. Between z = 0 and z = 1.63 2. Between z = 1.56 and = 2.51
10 answers
asked by
Sylvia
10,750 views
A survey found that 25% of pet owners had their pets bathed professionally rather than do it themselves. If 18 pet owners are
5 answers
asked by
Anonymous
9,267 views
A history class has 75 members. If there is a 12% absentee rate per class meeting, find the mean, variance, and atandard
6 answers
asked by
Michelle
6,517 views
Assume that blood pressure readings are normally distributed with a mean of 123 and a standard deviation of 9.6. If 144 people
5 answers
asked by
florence
19,549 views
A sample of 100 iron bars is said to be drawn from a large number of bars.
Whose lengths are normally distributed with mean 4
5 answers
asked by
Sankar
3,173 views
The test scores for 9 students on the Unit 1 test were 35, 25, 50, 95, 80, 60, 45, 100, and 90. What is the value of the second
5 answers
asked by
josh
3,399 views
Two similar data sets are being compared. The standard deviation of Set A is 4.8. The standard deviation of Set B is 6.5.
Which
5 answers
asked by
Hi
2,650 views
Let X1,X2,…,Xn be i.i.d. random variables with mean μ and variance σ2 . Denote the sample mean by X¯¯¯¯n=∑ni=1Xin .
Ass
4 answers
asked by
Help
3,360 views
in a club the average age of male members is 35 and the average age of the female members is 25. if 20 percent of the members
4 answers
asked by
Julia Ten
1,458 views
if the mean of these numbers (20,15,32,18) is 21 what is the missing number?
6 answers
asked by
imaan
650 views
A certain number of articles manufactured in a batch were classified into three categories according to some particular
4 answers
asked by
Jeshani
1,196 views
The scores on an exam are normally distributed, with a mean of 77 and a standard deviation of 10. What percent of the scores are
4 answers
asked by
Skye
1,945 views
If you told someone that the greatest depth of Lake Superior is 1333ft would you be expressing a number similar to mode, median,
4 answers
asked by
Connor
1,333 views
a six-faced die was thrown 28 times. the table shows the number that each possible score occurred.
score 1 2 3 4 5 6 frequency 8
4 answers
asked by
max
941 views
find the area under the normal curve that lies between z=0 and z=2.35?
find the area under the normal curve that lies between
4 answers
asked by
rex
849 views
For questions 3-4, use your calculator to create a scatter plot and line of best fit for the data:
Average height of a species of
4 answers
asked by
aster
1,559 views
find five numbers with a mean of 16, a median of 15 a mode of 21 and a range of 11.
hi Anna i hope this helps median is the
3 answers
asked by
Anna
1,419 views
. What percent of the forecasted high temperatures is greater than 43F?
3 answers
asked by
harleyquinn
265 views
I am respectfully requesting help with the following assignment. I am struggling in this chapter of statistics...
Define the term
4 answers
asked by
Lisa
1,161 views
In a random sample of 112 State College students, 41 students reported being current smokers.
a) Calculate the 95% confidence
3 answers
asked by
Anonymous
583 views
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