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Descriptive Statistics
Page 10
Questions (1,532)
A group of 894 women aged 70-79 had their height and weight measured. The mean height was 159 cm with a standard deviation of 5
4 answers
asked by
Candice
2,237 views
Statistics Find The Mean and Median Question 28.
IQ Scores: Use the listed IQ scores. IQ tests are designed so that the mean IQ
4 answers
asked by
Lexus
615 views
A firm produces batteries that have a lifetime which is normally distributed with a mean of 360 minutes and a standard deviation
2 answers
asked by
Sam
581 views
Suppose that a principal of a local high school tracks the number of minutes his students spend texting on a given school day.
2 answers
asked by
Lui
694 views
Using the following data set
a. Calculate the mean, mode, median, standard deviation, minimum, maximum and range b. Draw the
1 answer
asked by
ABDULA YUSUF
439 views
The average monthly attendance to the senior citizen bowling league is 67 with a stdev of 6.5. What is the probability that a
1 answer
asked by
Max
374 views
1.it has been reported that 83% of government employees has been migrated onto the single-spin salary structure.if a sample of
1 answer
asked by
Ras
420 views
Quick questions. Can you please put a website where I can find what Mode, Range, Median , and mean. Also I need some examples,
1 answer
asked by
Girl with questions.
380 views
A "Friendliness Test" has a mean of 50 and a standard deviation of 9. Treat these values as parameters. A sample of 9
1 answer
asked by
Jasmine
376 views
Find the standard devation of 4,6,8,10 and 12
1 answer
asked by
Olatunde Enoch
318 views
) Determine the number(range) of chocolate chips in a bag that make up the middle 99% of bags.
2 answers
asked by
regi
568 views
Explain the general rationale behind using a z-score for describing how an individual performed on an exam compared to just
1 answer
asked by
slomomo
608 views
What is deviation?
And what is the definition of frequency distribution & how would I solve a problem in 8th grade math with this
4 answers
asked by
Aayla
662 views
A sample has a mean of M = 73 and a standard deviation of s = 5
1 answer
asked by
dj
438 views
Suppose that weights for women in their 20’s average 125 lb., with a standard deviation of 14 lb. For a sample of size 50 how
1 answer
asked by
Anonymous
416 views
Without calculating values of z, tell which of these sample means will have the most extreme standardized score and which will
1 answer
asked by
Debbie
421 views
Instructions for the Experiment / Data Collection regarding questions 1-4: Collect data regarding the caffeine content in a 16oz
2 answers
asked by
Nisa (Please Help me)
526 views
For a population with a mean of 80 and a standard deviation of 12, what is the Z score corresponding to an individual score of
1 answer
asked by
Anonymous
368 views
numbers given are: 3.5, 2.6, 3, 3.1, 2.6, 2.8,
range is 0.9 z-score of 3.1 is Okay I am lost
1 answer
asked by
Patricia
289 views
The population (in millions) and the violent crime rate (per 1000) were recorded for 10 metropolitan areas. The data are shown
1 answer
asked by
Rustie
452 views
find the z-scores for which 92% of the distribution's area lies between -z and z
3 answers
asked by
Carolyn
1,476 views
test has a 500 mean with a sd of 150; with a score of
.13% both negative and postive 2.14%
1 answer
asked by
Anonymous
345 views
The mean (μ) of the scale is 55 and the standard deviation (σ) is 7. Assuming that the scores are normally distributed, what
2 answers
asked by
johnny
502 views
i need help with this Question
The following data represents Total Credit Hours from our class survey. 90 54 98 45 65 43 12 48 56
3 answers
asked by
JOJO
513 views
use the z score table to find the floolwing:
a) p(1.2<z<2.4) b) p(z>1.675) please show working out
1 answer
asked by
jay
404 views
Annual per capita consumption of milk is 21.6 gallons (Statistical Abstract of the United States: 2006). Being from the Midwest,
1 answer
asked by
Vanessa
1,057 views
If a measured distribution has an average of 65 and a variance of 16 and the standard
deviation of the random error is 4
1 answer
asked by
sas
386 views
Annual per capita consumption of milk is 21.6 gallons (Statistical Abstract of the United States: 2006). Being from the Midwest,
1 answer
asked by
Mia
806 views
Annual per capita consumption of milk is 21.6 gallons (Statistical Abstract of the United States: 2006). Being from the Midwest,
1 answer
asked by
Alejandra
625 views
Annual per capita consumption of milk is 21.6 gallons (Statistical Abstract of the United States: 2006). Being from the Midwest,
2 answers
asked by
Mia
538 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
3 answers
asked by
brewster
526 views
A random sample of 50 households in community A has a
mean household income of �X =Rs. 44,600 with a standard deviation s =Rs.
2 answers
asked by
Anonymous
656 views
The following data represent the number of live births in the United States in 2007 for women 15 to 49 years old.
Age Live Births
2 answers
asked by
Sarah
506 views
Descriptive statistics are widely used in qualitative research. When establishing if a population is normally distributed
2 answers
asked by
maureen
585 views
For 3 and 4 find the range, variance, and standard deviation. Round to the nearest tenth.
3. Twelve students were given an
4 answers
asked by
Artmisha
984 views
A survey of 1500 college students found that 675 stay on campus in a dorm. Find the mean and standard deviation of the
1 answer
asked by
Anonymous
412 views
In testing a new drug, researchers found that 20% of all patients using it would have a mild side effect. A random sample of 25
2 answers
asked by
Netta
499 views
What is the mean of the sample means?
What is the standard deviation of the sample means?
2 answers
asked by
emma
494 views
A random sample of mid-sized cars tested for fuel consumption gave a mean of miles per gallon with a standard deviation of miles
3 answers
asked by
Anonymous
1,418 views
the average placement test score of a sample of 64 students out of 1000 registered at a community college is 70 with a standard
2 answers
asked by
D
1,207 views
Allen's hummingbird (Selasphorus sasin) has been studied by zoologist Bill Alther.† Suppose a small group of 17 Allen's
3 answers
asked by
Alexus
1,535 views
Suppose that the average weight of students in a statistics class is 75.5 kilograms with a standard deviation of 10.3 kilograms.
5 answers
asked by
Tracy
502 views
Suppose that the average weight of students in a statistics class is 75.5 kilograms with a standard deviation of 10.3 kilograms.
4 answers
asked by
Tracy
572 views
Suppose that the average weight of students in a statistics class is 75.5 kilograms with a standard deviation of 10.3 kilograms.
2 answers
asked by
Anonymous
705 views
Suppose that the average weight of students in a statistics class is 75.5 kilograms with a standard deviation of 10.3 kilograms.
2 answers
asked by
Anonymous
496 views
Suppose that the average weight of students in a statistics class is 75.5 kilograms with a standard deviation of 10.3 kilograms.
1 answer
asked by
Anonymous
419 views
Suppose that the mean score of 250,000 students on the mathematics part of the SAT is 468 and the standard deviation is 104.
1 answer
asked by
Anonymous
420 views
Consider the GPA’s for the following 15 students
3.10, 3.20, 3.49, 2.68, 3.73, 3.39, 3.80, 3.11, 3.10, 3.10, 4.0, 3.89, 2.55,
1 answer
asked by
thomas
457 views
the following table gives the number of camcorders sold on a given day in an electronics store
X: 0, 1, 2, 3, 4, 5, 5, P(x) 0.5,
3 answers
asked by
james ohara
395 views
Salaries of 31 college graduates who took
a course in college have a mean, x of 66,700 a standard deviation , o of 17,120,
2 answers
asked by
anonymous
563 views
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