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How many standard deviations is needed to capture 75 percent of data?
Wiki User
∙ 11y ago
It depends on the shape of the distribution.
For standard normal distribution, a two tailed range would be from -1.15 sd to + 1.15 sd.
Wiki User
∙ 11y ago
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Calculate the number of degrees in a pie graph that would be needed for the rent category that has a percentage of 20 percent?
72
What is the minimum score needed to be in the bottom 10 percent of the normal distribution with a mean of 140 and a standard deviation of 55?
To do this, you first need to convert the percentage into a z-score. The bottom 10% yields a z-score of -1.2816. Multiplying this by 55 and adding to the mean gives 69.512. This means all score less that are 69 or less will be in the bottom 10%
Why use standard deviation In what situations is it special?
I will restate your question as "Why are the mean and standard deviation of a sample so frequently calculated?". The standard deviation is a measure of the dispersion of the data. It certainly is not the only measure, as the range of a dataset is also a measure of dispersion and is more easily calculated. Similarly, some prefer a plot of the quartiles of the data, again to show data dispersal.t Standard deviation and the mean are needed when we want to infer certain information about the population such as confidence limits from a sample. These statistics are also used in establishing the size of the sample we need to take to improve our estimates of the population. Finally, these statistics enable us to test hypothesis with a certain degree of certainty based on our data. All this stems from the concept that there is a theoretical sampling distribution for the statistics we calculate, such as a proportion, mean or standard deviation. In general, the mean or proportion has either a normal or t distribution. Finally, the measures of dispersion will only be valid, be it range, quantiles or standard deviation, require observations which are independent of each other. This is the basis of random sampling.
The average gas mileage of a certain model car is 28 miles per gallon If the gas mileages are normally distributed with a standard deviation of 1.7 find the probability that a car has a gas mileage?
That's on page 126 in your statistics textbook...... DO YOUR OWN HOMEWORK!!! K i obv needed help with how to do it, ass. I didn't want just the answer.
Is a data file needed to make a bar graph?
Yes.
How do you identify and correct deviations fron legislation and industry specific regulation?
To identify deviations from legislation and industry regulations, regularly review and compare your practices with the legal requirements and standards. Correct deviations by updating policies, procedures, and practices to ensure compliance with the regulations. Seek guidance from legal experts or regulatory bodies if needed. Regular training and auditing can also help prevent future deviations.
Why was the Crusades fought?
because.........they needed to capture Jerusalem
Do ribosomes capture sunlight?
yes.But not directly.They produce enzymes needed for photosynthesis
What number or percent is needed to pass laws?
60 percent is needed to pass laws
What is the equity percent needed to finance a new business?
what is the equity percent needed to finance a business
Why are pigments needed for photosynthesis?
Pigments are needed because they are useful to autotrophs and plants. Pigments are used to capture the sunlight's energy.
Can the margin of error be determined if only the confidence level is known?
No, more information is needed to determine the margin of error. For example, one may need to know the sample's mean, the sample size, and the standard deviations of the population and sample. Depending on the type of test one is performing, certain parameters need not be known. For example, the population standard deviation does not need to be known in a one sample T-test.
What is a standard unit needed to measure a quantity correctly?
To measure a physical quantity correctly and need to compare it with some standard quantities. Thus a standard unit is needed to measure a quantity correctly.
How far can a king jump in checkers?
A king can jump as far as needed to legally capture pieces.
How many percent of votes needed to became a registered party in India?
6 percent
What is the minimum income needed to support a household?
the standard of living
What does photosynthesis uses to make sugar?
Sun lightSun light provide energy. CO2 and H2O are ingredients.Chlorophyll are needed to capture energy. Enzymes are needed to guide the process
