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Normal Distribution
Page 3
Questions (2,066)
Let U, V, and W be independent standard normal random variables (that is, independent normal random variables, each with mean 0
1 answer
asked by
qwerty
1,006 views
The graph represents the normal distribution of recorded weights, in pounds, of cats at a veterinary clinic.
Which weights are
3 answers
asked by
Anonymous
1,775 views
The height of adult males on a given South Pacific Island is approximately normally distributed with mean 63 inches and standard
2 answers
asked anonymously
112 views
The height of adult males on a given South Pacific Island is approximately normally distributed with mean 63 inches and standard
2 answers
asked anonymously
154 views
The age of customers for a particular retail store follows a normal distribution with a mean of 37.5 years and standard
2 answers
asked by
Birhanu
78 views
the standard number of cookies in a shipment of bags are normally distributed, with a mean of 64 and a standard deviation of 4.
7 answers
asked by
slayrat
114 views
The average height of sunflowers in a field is 64 inches. With a standard deviation of 3.5 inches. On a piece of paper, draw a
2 answers
asked by
slayrat
117 views
A final exam in math 160 has a mean of 73 with a standard deviation 7.73. Assume that a random sample of 24 students is selected
2 answers
asked by
Latraina
105 views
IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. What percentage of people have an IQ score
4 answers
asked by
kiki
54 views
The age of customer for a particular retail stone follows a normal distribution with a mean of 37.5 years and standard deviation
1 answer
asked by
Birhanu
75 views
The numbers of cookies in a shipment of bags are normally distributed, with a mean of 64 and a standard deviation of 4. What
1 answer
asked by
Helloooo
105 views
Let X be a standard normal random variable. Another random variable is determined as follows. We flip a fair coin (independent
6 answers
asked by
Emre
2,377 views
Suppose a random sample of 25 students is selected from a community college where the scores in the final exam (out of 125
3 answers
asked by
Coco
1,146 views
A survey found that women’s heights are normally distributed with mean 63.4 in and standard deviation 2.5 in. A branch of the
4 answers
asked by
Angie
5,766 views
A statistics teacher believes that the final exam grade for her elementary stats class have a normal distribution with a mean of
2 answers
asked by
Sean
948 views
Match each of the proportionality expressions below to the corresponding well-known distribution, and then compute the values of
2 answers
asked anonymously
78 views
A set of data has a normal distribution with a mean of 29 and a
standard deviation of 4. Find the percent of data within the
1 answer
asked anonymously
80 views
The mean of a normally distributed data set is 12, and the standard deviation is 2.
___% of the data points lies between 8 and
3 answers
asked by
Farah
2,135 views
Suppose the scores of students on an exam are Normally distributed with a mean of 297 and a standard deviation of 66. Then
4 answers
asked by
Please and Thank you!!!
4,051 views
Students in the psychology department consume an average of 5 cups of coffee per day with a standard deviation of 1.75 cups. The
5 answers
asked by
StudentD
4,270 views
Accrotime is a manufacturer of quartz crystal watches. Accrotime researchers have shown that the watches have an average life of
2 answers
asked by
Brad
591 views
The mean of a normal distribution is 400 pounds. The standard deviation is 10 pounds. What is the area between 415 pounds and
4 answers
asked by
brenduh
1,383 views
A manufacturer of cereal finds that the masses of cereal in a company's 200-g package are normally distributed with a mean of
4 answers
asked by
kitkat
1,584 views
The number of cookies in a shipment of bags are normally distributed, with a mean of 64 and a standard deviation of 4. What
1 answer
asked by
skittlez
78 views
Why errors are assumed to be normaly distributed?
1 answer
asked by
Evaristi Paulo
54 views
Suppose that the antenna lengths of woodlice are approximately normally distributed with a mean of 0.2 inches and a standard
4 answers
asked by
C. Fenwick
4,357 views
Let X and Y be normal random variables with means 0 and 2, respectively, and variances 1 and 9, respectively. Find the
4 answers
asked by
abc
853 views
A brewery has a beer dispensing machine that dispenses beer into the company's 12 ounce bottles. The distribution for the amount
3 answers
asked by
Ashley
1,727 views
The length of time it takes college students to find a parking spot in the library parking lot follows a
normal distribution with
4 answers
asked by
Anonymous
5,789 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
1,342 views
a vending machine dispenses coffee into an 8 oz cup. the amount of coffee dispensed into the cup is normally distributed with a
5 answers
asked by
jennifer
1,752 views
Identify an example of a population that you would expect to be normally distributed. Explain why, according to you, it would be
2 answers
asked by
slomomo
840 views
Need help finding the area under the normal curve between z = -1.0 and z = -2.0?
3 answers
asked by
Betty
1,318 views
Use technology or a z-distribution table to find the indicated area.
The weights of grapefruits in a bin are normally distributed
3 answers
asked by
student
1,845 views
Suppose that the readings on the thermometers are normally distributed with a mean of 0∘ and a standard deviation of 1.00∘C.
5 answers
asked by
Anonymous
3,559 views
Suppose the yearly rainfall totals for a some city follow a normal distribution, with mean of 18 inches and standard deviation
3 answers
asked by
Anonymous
1,637 views
The masses of boxes of apples are normally distributed such that 20% of the boxes are heavier than 5.08 kg and 15% of the boxes
4 answers
asked by
Raj
1,041 views
Daily output of Marathon's Garyville, Lousiana, refinery is normally distributed with a mean of 232,000 barrels of crude oil per
4 answers
asked by
Janice
1,870 views
The mean systolic blood pressure of adult males is normally
distributed with a mean of 138 (millimeters of mercury) and a
4 answers
asked by
Aleah
703 views
Which of the following statements are TRUE about the Normal Distribution? Check all that apply.
a. 50% of the data values lie at
3 answers
asked by
pancakey-
737 views
Cartons of milk from a particular supermarket are advertised as containing 1 litre of milk,but in fact the volume of the milk in
4 answers
asked by
Raj
1,072 views
Cartons of milk from a particular supermarket are advertised as containing 1 litre of milk,but in fact the volume of the milk in
4 answers
asked by
Raj
876 views
Given the mean = $12
Standard deviation = $2.50 Suppose that a large state university graduate research assistants are paid by
4 answers
asked by
Ronald
1,002 views
The medical records of infants delivered at Kaiser Memorial Hospital show that the infants' lengths at birth (in inches) are
3 answers
asked by
Ashley
1,483 views
The time taken by a milk man to deliver milk to GOR estate is normally distributed with mean 12 minutes and standard deviation
1 answer
asked by
m nawaz
360 views
The yearly mileage accumulated by an automobile in a large car rental company’s fleet is normal with mean 18000 kilometres
3 answers
asked by
eimear
655 views
At a high school, GPA’s are normally distributed with a mean of 2.6 and a standard deviation of 0.5. What percentage of
4 answers
asked by
Maxwell
2,301 views
How do I solve normal distribution word problems? Ex
A manufacturer offers a warranty on it's coffee makers. The coffee makers
3 answers
asked by
Ayane
1,504 views
B. A soft-drink vending machine is supposed to pour 8 ounces of the drink into a paper cup. However, the actual amount poured
5 answers
asked by
DON
1,154 views
suppose that prices of a certain model of new homes are normally distributed with a mean of $150,000 use 68-95-99.7 rule to find
3 answers
asked by
CHIN
4,291 views
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Parent Categories (44)
Basic Concepts
Confidence Interval
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