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Normal Distribution
Page 6
Questions (2,033)
If the average price of a new single family home is $246,300 with a standard deviation of $15,000, find the minimum and maximum
4 answers
asked by
stacy
968 views
the score on an achievement of test given to 1,00,000 students are normally distributed with mean 500 and standard deviation of
4 answers
asked by
Saran
1,055 views
The time needed to complete a final examination in a particular college course is normally distributed with a mean of 79 minutes
4 answers
asked by
margaret
4,997 views
Find the area under the normal distribution curve to the left of z = 2.35.
3 answers
asked by
Shelagh
2,706 views
Assume that women's heights are normally distributed with a mean given by u=64.6 in
and a standard deviation given by 0=2.8in. a)
6 answers
asked by
angela
7,052 views
Suppose adults in a particular town drive a mean of 65 mph with a standard deviation of 15 mph. Using the normal curve table,
a.W
3 answers
asked by
Jacky
1,739 views
John drives to work each morning and the trip takes an average of µ = 38 minutes. The
distribution of driving times is
4 answers
asked by
Anonymous
1,790 views
jenny is 5'10" tall. the heights of the girls in the school are approximately normally distributed with a mean of 5'5" and a
4 answers
asked by
Confused
652 views
On a test whose distribution is approximately normal with a mean of 50 and a standard deviation of 10, the results for three
3 answers
asked by
Kathy
774 views
From a set of 1000 observations known to be normally distributed, the mean is 534 cm and SD is 13.5 cm. How many observations
4 answers
asked by
Neeraj Bhanot
2,017 views
a normal distribution ha am ean of 80 with a standard deviation of 20. what score separates the highest 15% of the distribution
4 answers
asked by
Leigh
1,601 views
Use the Standard Normal Distribution table to find the indicated area under the standard normal curve.
Q1: Between z = 0 and z =
4 answers
asked by
looking for someone to varify my work please
1,540 views
Savannah earned a score of 43 on Exam A that had a mean of 36 and a standard
deviation of 5. She is about to take Exam B that has
3 answers
asked by
Daniela
410 views
the pregnancy length in days for a population of new mothers can be approximated by a normal distribution with a mean of 270
4 answers
asked by
n
724 views
Use the table to answer the question. Note: Round z-scores to the nearest hundredth and then find the required A values using
4 answers
asked by
rose
1,166 views
Use the Empirical Rule to answer each question.
During 1 week an overnight delivery company found that the weights of its parcels
4 answers
asked by
rose
2,029 views
The annual precipitation for one city is normally distributed with a mean of 390 inches and a standard deviation of 3.2 inches.
4 answers
asked by
Gladys
1,260 views
The diameters of bolts produced by a particular machine follow a normal distribution with mean 1.34cm and standard deviation
5 answers
asked by
Raj
1,485 views
how do I find z such it lies 5.3% to the left of the standard normal curve?
4 answers
asked by
Donzella Washington
1,470 views
The equation for a general normal curve with mean μ and standard deviation σ is
y = e−(x − μ)2/(2σ2) σ 2π . Calculate
2 answers
asked by
ryan
1,230 views
The number of vacation days taken by employees of a company is normally distributed with a mean of 14 days and a standard
4 answers
asked by
bob
1,281 views
Find the standard normal area for each of the following, showing your reasoning clearly.
a. P(1.22<z<2.15) b. P(2.00<z<3.00) c.
4 answers
asked by
Kelly
2,524 views
1. The time required to complete a project is normally distributed with a mean of 80 weeks and a standard deviation of 10 weeks.
5 answers
asked by
Gracie
3,197 views
Solve the problem.
Suppose a random variable x is best described by a normal distribution with μ = 60 and Find the z-score that
3 answers
asked by
955 views
Using the standard normal distribution, find the probability that z is less than -1.78 (Points: 6)
0.0375 0.9625 0.9319 0.0384
4 answers
asked by
sonny
1,230 views
Crunchy Corn Chips are packaged in bags labeled "net weight 10 ounces." In fact, the weight of a bag of Crunchy Corn Chips
3 answers
asked by
Stephanie
1,797 views
The systolic blood pressures of the patients at a hospital are normally distributed with a mean of
136 mm Hg and a standard
4 answers
asked by
Emory
3,001 views
A machine fills 64 ounce detergent jugs. It is known that the net amount of detergent poured into each jug has a normal
3 answers
asked by
Riley
1,117 views
Assume that the heights of American women are approximately normally distributed with a mean of 66.5 in. and a standard
2 answers
asked by
Andrea
625 views
In the example in problem 18, using a normal curve table, what is the minimum Z score an architect can have on the creativity
3 answers
asked by
Bravo
885 views
In a normal distribution, 4% of the distribution is less than 53 and 97% of the distribution is less than 65.i.Find the mean and
5 answers
asked by
Raj
707 views
A standard math test was given to 6000 students. The scores were normally distributed with a mean of 420 and a standard
6 answers
asked by
Jacqueline
1,412 views
The weights of 1,000 men in a certain town follow a normal distribution with a mean of 150 pounds and a standard deviation of 15
4 answers
asked by
Farah
3,945 views
The probability that an observation, following a normal distribution, will lie within μ ± 1.3σ is
1 answer
asked by
xalane
390 views
Find the area under the standard normal curve that lies between z = -2.09 and z = 1.98. Note: the graph may not be drawn to
3 answers
asked by
Anonymous
1,576 views
Find the area under the normal distribution curve to the left of z = –1.50.
3 answers
asked by
Shelagh
1,381 views
The serum cholesterol levels for men in in one age group are normally distributed with mean of 178.1 and standard deviation of
4 answers
asked by
Amy
1,108 views
I have no idea on how to answer this question...
"Use technology or a standard normal distribution table to find the area to the
3 answers
asked by
Jim
863 views
Assume that a population is normally distributed with a mean of 100 and a standard deviation of 15. Would it be unusual for the
3 answers
asked by
Berry
915 views
on the daily run of an express bus, the average number of passengers is 48. the standard deviation is 3. Assume the variable is
4 answers
asked by
Michelle
1,401 views
Assume that the mean hourly cost to operate a commercial airplane follows the normal distribution with a mean of $2,225 per hour
5 answers
asked by
Barbara
2,332 views
for a standard normal curve, find the z-score that separates the bottom 30% from the top 70%
4 answers
asked by
kay
7,001 views
Find the z-scores that separate the middle 40% of the distribution from the area in the tails of the standard normal
2 answers
asked by
yes
1,026 views
Cartons of milk from a particular supermarket are advertised as containing 1 liter, but in fact the volume of the contents is
4 answers
asked by
Edmond Munyengwa
382 views
The number of pieces of popcorn in a large movie theatre popcorn bucket is normally distributed, with a mean of 1720 and a
4 answers
asked by
rwedf
2,321 views
Assume that women’s heights are normally distributed with a mean of 63.6inches and a standard deviation of 2.5inches. If 90
4 answers
asked by
Help
5,489 views
the amount of pyridoxine in grams per multiple vitamin is normally distributed with mean = 110 grams and standard deviation = 25
3 answers
asked by
james
1,539 views
Scores on a marketing exam are known to be normally distribute with mean and standard deviation of 60 and 20, respectively. The
4 answers
asked by
Sam
1,432 views
5) The product is sold in packets whose masses are normally distributes with mean of 1.42 kg and a standard deviation of 0.025
3 answers
asked by
Koylar
785 views
Find z such that 7.1% of the standard normal curve lies to the left of z ?
3 answers
asked by
leia
2,286 views
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