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Statistics and Probability
Page 2
Questions (111)
The times for completing one circuit of a bicycle course are normally distributed with a mean of 81.7 minutes and a standard
2 answers
asked by
john
1,295 views
The monthly rents for the apartments in a building are listed below. $425, $550, $550, $550, $650, $650, $650, $650, $800, $900
P
3 answers
asked by
jenny
732 views
Airline overbooking is a common practice. Many people make reservations on several flights due to uncertain plans and then
2 answers
asked by
Michelle
562 views
The average selling price of homes in a certain city is $356,300. Assume the variable is normally distributed with a standard
1 answer
asked by
Jennifer
481 views
If your score on a statistics exam was 76 and the professor gave you the distribution for the exam score for your class, you
2 answers
asked by
Jojo
560 views
A manufacturer of liquid crystal displays (LCDs) is studying their production lines. The probability of sampling a defective LCD
3 answers
asked anonymously
70 views
The weight of a product is normally distributed with a standard deviation of .8 ounces. What should the average weight be if the
2 answers
asked by
jenny
745 views
A salesperson goes door-to-door in a residential area to demonstrate the use of a new Household appliance to potential
1 answer
asked by
jenny
570 views
1. Find the following quantities by hand (except for the standard deviation) Check your results with your calculator:
a. Minimum
1 answer
asked by
Anonymous
459 views
3. Piyush, who had joined the infrastructure department of the bank, was asked to estimate the rental value of commercial
1 answer
asked by
prakash
372 views
A random sample of 10 miniature Tootsie Rolls was taken from a bag. Each piece was weighed on
a very accurate scale. The results
2 answers
asked by
sam
512 views
A survey was given to two different age groups about whether they enjoyed a local theater production. Use the results of the
3 answers
asked anonymously
84 views
Is it true or false that risk to a population group is generally expressed as the likelihood of an event happening?
1 answer
asked by
rachel
340 views
[1%] CHI SQUARE TEST OF INDEPENDENCE: Of a sample of 80 single and married women surveyed, we obtained the following data as to
1 answer
asked by
TJohnson
381 views
out of 100 tickets sold at a school raffle jack bought 5 mat bought 3 and jon bought 2 whats the probability each boy will win?
4 answers
asked by
rebecca
278 views
Confidence Intervals and Errors:
An opinion poll asks 1500 randomly chosen United States residents their opinions about relations
1 answer
asked by
Carma
495 views
Could anyone explaint to me what role the Binomial Theory plays in statistics and probability?
Using statistics, we can make
1 answer
asked by
Jennie
1,041 views
A rescue squad spokesperson claims that the squad receives an average of 3 calls per hour. If at most 6 calls were received over
1 answer
asked by
Lindz
895 views
Jim Tree sells trees. The mean length of the trees purchased was 68 inches with a standard deviation of 10 inches. Jim wants to
5 answers
asked by
Jessie
4,231 views
Hi can someone please help me?
A recent study gave the information shown in the table about ages of children receiving toys. The
3 answers
asked by
Kelly
2,897 views
A car manufacturer is interested in conducting a study to estimate the mean stopping distance for a new type of brakes when used
3 answers
asked by
Bob
2,729 views
Direct mail advertisers send solicitations (a.k.a. "junk mail") to thousands of potential customers in the hope that some will
3 answers
asked by
MeSue
1,610 views
In a survey of families in which both parents work, one of the questions asked was, "Have you refused a job, promotion, or
4 answers
asked by
Tracy
1,384 views
Consider the trash bag problem. Suppose that an independent laboratory has tested trash bags and has found that no 30-gallon
2 answers
asked by
Amy
1,356 views
The data set represents the income levels of the members of a country club. Estimate the probability that a randomly selected
2 answers
asked by
HELP
1,231 views
This is the first question..... For a population that has a standard deviation of 10, figure the standard deviation of the
1 answer
asked by
Heather
1,157 views
based on a study by Dr.P. Sorita Soni at Indiana University, we know that the eye colors in the United States are distributed as
1 answer
asked by
Anonymous
1,113 views
In the library on a university campus, there is a sign in the elevator that indicates a limit of 16 people. in addition there is
2 answers
asked by
Eric
979 views
A high school has 438 students, with about the same number of males as females. Describe a simulation to predict how many of the
5 answers
asked by
Homework
986 views
For 100 consecutive day frequencies of occurrence of the digits 35,35,30 for the digits 1,2,3 at .05, can you reject the
2 answers
asked by
Michael
917 views
The Information Systems Audit and Control Association surveyed office workers to learn about the anticipated usage of office
1 answer
asked by
Kelly Luth
897 views
There are 30 students in a class. 20 of them play football, 16 play hockey and 16 play volleys. 9 play all three games, 15 play
1 answer
asked anonymously
57 views
We have a group of 75 people and for their raw scores, you are given the Mean (M = 30) and variance (VAR = 16). Assuming a
1 answer
asked by
james akbar
806 views
look at the chart- out of 150 dog owners 75 perfer human food only,45 perfer pet food only and 30 perfer both human and pet
1 answer
asked by
Julie
789 views
Patrick recorded the daily changes of the value of stock in dollars: -3.40, -8.09, -2.47, 1.86, and 3. 55. What was the average
5 answers
asked by
haley
752 views
Suppose a student reaches in the bag and randomly selects nine red chips and eleven yellow chips. Based on this sample, what is
4 answers
asked by
Layla
722 views
IQ scores distribution of IQ scores is normally distributed
standard with a mean of 100 and a standard deviation of 15, which is
2 answers
asked by
norma
720 views
In a random sample of 508 judges, it was found that 281 were introverts. Let p represent the proportion of all judges who are
5 answers
asked by
Jacob
676 views
The number of passengers on the Carnival Sensation during one-week cruises in the
Caribbean follows the normal distribution. The
3 answers
asked by
Monique
652 views
How large a sample of U.S. adults is needed in order to estimate U with a 95% confidence interval of length 1.2 hours?
3 answers
asked by
Pat
643 views
The Survey of Study Habits and Attitudes (SSHA) is a psychological test that measures students' study habits and attitudes
1 answer
asked by
Anonymous
694 views
Most Americans, 75% in fact, say frequent handwashing is the best way to fend off the flu. Despite that, when using public
2 answers
asked by
April
611 views
A health inspector wants to check compliance with a new city ordinance on meat storage. Since he can only inspect 10 of the 33
3 answers
asked by
Jammal
601 views
researchers believe a new sleep on average 10 hours per night ( µ = 10), with a population standard deviation of 2.3
2 answers
asked by
jessica
588 views
At a local Mcdonald’s managers will return a shipment of hamburger buns if more than 10% of the buns are crushed. A random
2 answers
asked by
morne
559 views
A survey asked what types of books and deserts people preferred. The results are summarized in this two-way frequency table.
TABL
1 answer
asked anonymously
35 views
The length of Super Bowl commercials is said to be Normally distributed with a mean of 36 seconds and standard deviation of 8
2 answers
asked by
ASH
518 views
Four boxes of cereal are to be selected at random from a continuous process that
fills boxes labeled "Contents: 340 g." The
2 answers
asked by
david
525 views
There is a normal distribution with a mean of 36.9 and standard deviation of 13.9
What is the 25th percentile of this
1 answer
asked anonymously
32 views
A bottling company uses a filling machine to fill glass bottles with mango juice. The bottles are supposed to contain 300
1 answer
asked by
Jason L
499 views
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Parent Categories (7)
Distribution in the United States
Education
Handwashing
Health and Pregnancy
Hypertension
Mathematics
Science and Education