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Mean and Standard Deviation
Page 2
Questions (136)
(c) The number of cars found to have unsafe tires among the 379 cars stopped at a roadblock for inspection (assume that 15% of
5 answers
asked by
tommy512
1,027 views
Consider the binomial random variable x with n = 30 and p = 0.85.
(a) Find the mean. (Give your answer correct to one decimal
3 answers
asked by
Nora 511
617 views
The average square footage in an apartment in a town is 1,800 square feet with a standard deviation of 120 square feet.
The
2 answers
asked by
Group Stat Lab
524 views
The mean number of bumped airline passengers per day s 1.35 and the standard deviation is 0.25. For a random selection of a
1 answer
asked by
chris
394 views
n a transportation study of 20 large cities, it was found that the mean of the number of cars per person was 0.504. (Some of the
3 answers
asked by
chris
396 views
The mean number of bumped airline passengers per day is 1.35 and the standard deviation is 0.25. For a random selection of a
1 answer
asked by
Christina
471 views
Describe a business situation, other than what has already been selected by fellow students or selected from the team
1 answer
asked by
Tshara
339 views
The Mean and the Standard Deviation
Last year, golfers at Smith Ranch golf course had a mean score of 41 and a standard deviation
2 answers
asked by
alejandro
511 views
For a population with a mean of μ � 70 and a standard
deviation of � � 20, how much error, on average, would you expect between
2 answers
asked by
Cookie
669 views
if i have a sample size of 200, 16% are poor, what is my mean and standard deviation. my answers do not make any sense
1 answer
asked by
gary
341 views
Commuters were asked how many times a week they stop for coffee on their way to work. A survey found a mean of 3 times a week
1 answer
asked by
Alley
371 views
The mean height of fully grown birch trees are 18 feet with a standard deviation of 1.2 feet, normally distributed. Random
2 answers
asked by
D
510 views
16. Describe what is measured by the mean and what is measured by the standard deviation for a set of scores.
1 answer
asked by
Mary beth
315 views
Use the graphic to show the sampling distributions of means for the sample from Prison A (n=82) and the sample from Prison B
1 answer
asked by
sammy
366 views
Consider again the data in problem #6. Suppose that in the aerobic exercise group we also measured the number of hours of
2 answers
asked by
Anonymous
540 views
Assume that the population of heights of female college students is approximately normally distributed with mean m of 67.26
1 answer
asked by
tina
473 views
Please I Need Help With This Question Showing All Steps...Thank You :)
The average number of units that the factory workers at
1 answer
asked by
evangeline johnny
479 views
For a random sample of 10 men, the mean head circumference is x = 57.3 cm and the sample standard deviation is s = 2 cm. The
2 answers
asked by
toyman
555 views
An analysis of the combined SAT scores (Verbal + Math) of a sample of psychology majors at one school indicated that the mean
3 answers
asked by
freddy
699 views
the mean of adult men is 172 pounds with a standard deviation of 29 pounds. ask 20 men thier weight and use excel to calculate
2 answers
asked by
Jennifer
489 views
A computer supply house receives a large shipment of blank CDs each week. Past experience has shown that the number of flaws per
2 answers
asked by
Adam
571 views
A survey was done recently by the Royal Bank with Ipsos Reid (reported in Globe and Mail Aug 16 2010) about financial issues
1 answer
asked by
jaz
643 views
The mean and standard deviation of a set of data are two measurments that describe the data. A certain student has written 8 out
1 answer
asked by
Leigh
460 views
WEB CALCULATOR EXERCISE
Descriptive Statistics 1 The table below presents data for a sample of people who completed a religious
2 answers
asked by
Joe
1,919 views
Five males with a particular genetic disorder have one child each. the random variable x is the number of children among the
3 answers
asked by
slomomo
1,917 views
Five males with a particular genetic disorder have one child each. The random variable x is the number of children among the
4 answers
asked by
Mary
1,512 views
A sample of 12 measurements has a mean of 37 and a standard deviation of 4.25. Suppose that the sample is enlarged to 14
3 answers
asked by
Anonymous
1,381 views
150 students is 60 kg the mean of body is 70 kg withstandard deviation of 10 kg and mean weight of girls is 55 kg with standard
5 answers
asked by
Anonymous
1,295 views
A study of the amount of time it takes a mechanic to rebuild the transmission for a 1992 Cavalier shows that the mean is 4.5
3 answers
asked by
Elizabeth
1,227 views
Suppose the heights of 18-year-old men are approximately normally distributed, with mean 66 inches and standard deviation 4
1 answer
asked by
Amy
1,214 views
Several psychology students are unprepared for a surprise true/false test with 18 questions, and all of their answers are
1 answer
asked by
Mart
1,179 views
What is the mean and standard deviation of
63.7%? What is the mean and standard deviation of 61.4%? Using the 68-95-99.7 rule,
5 answers
asked by
Lisa
1,090 views
Question2: When parking a car in a downtown parking lot, drivers pay according to the number of hours or fraction thereof. The
1 answer
asked by
s.Alhosani
1,006 views
55% of the people in a town have brown eyes. you choose a random sample of 200 people to survey regarding their eye color. What
1 answer
asked by
Anonymous
967 views
From past experience, an airline has found the luggage weight for individual air travelers on its trans-Atlantic route to have a
3 answers
asked by
JOSH
978 views
A vending machine dispenses coffee into a twelve-ounce cup. The amount of coffee dispensed into the cup is normally distributed
1 answer
asked by
Mary
958 views
sample- a recent study reports that older adults who got regular physical exercise experienced fewer symptoms of depression,
2 answers
asked by
Byron
946 views
A headline in a certain newspaper states that "most stay at first job less than 2 years."
That headline is based on an online
3 answers
asked by
slomomo
1,207 views
A study was conducted in order to estimate u, the mean number of weekly hours that U.S. adults use computers at home. Suppose a
3 answers
asked by
Pat
827 views
A study of the amount of time it takes a mechanic to rebuild the
transmission for a 1992 Chevrolet Cavalier shows that the mean
1 answer
asked by
angela
799 views
A set of normally distribution data had mean of 3.2 and a standard deviation of 7.0. Find the probability of randomly selecting
3 answers
asked by
maczindahouse
776 views
# Statistics - bobpursley, Wednesday, October 6, 2010 at 4:30pm
second applet. Set mean to zero, std deviation to .8 oz check
2 answers
asked by
Beverley
752 views
A scientist calculated the mean and standard deviation of a data set to be and . She then found that she was missing one data
3 answers
asked by
ken
762 views
Suppose X is a random variable with mean μ and standard deviation σ. If a large number of trials is observed, at least what
2 answers
asked by
titi
708 views
A candidate for public office has claimed that 60% of voters will vote for her. If 5 registered voters were sampled,
1. What is
1 answer
asked by
jessica
670 views
A standardized third grade reading test, called the We Can Read Test, has a mean of 50 with a standard deviation of 10. A
2 answers
asked by
Carrie
631 views
1,3,5,3,2,29,3,4,2,1,2
Mean 5 Range 28 Variance 64.8 Standard Deviation 8.0 1.What value is affecting the mean and SD of this
12 answers
asked by
Anonymous
618 views
For a population with a mean of (mew) = 50 and a standard deviation of 10, how much error, on average, would you expect between
2 answers
asked by
Aestas
615 views
3. The mean volume of draught beer served in pint glasses in a particular pub is known to be 0.564 litres. A consumer
2 answers
asked by
najma
596 views
Age at onset of dementia was determined for a sample of adults between the ages of 60 and 75. For 15 subjects, the results were
3 answers
asked by
daniel
574 views
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Parent Categories (27)
Binomial distribution
Calculations
Cue Colour
Data Analysis
Descriptive Statistics
Distribution
Measures of Central Tendency
Measures of Central Tendency and Dispersion
NAEP Test
Normal Distribution
Population Parameters
Population Statistics
Probability
Probability and Statistics
Probability Distribution
Probability Distribution Function
Probability distributions
Random Variables
Sampling
Sampling and Estimation
Sampling and Sampling Distributions
Sampling distribution
Sampling Distributions
Statistical Analysis
Statistical Measures
Statistics
Statistics and Hypothesis Testing