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Statistics
Statistics deals with collecting, organizing, and interpreting numerical data. An important aspect of statistics is the analysis of population characteristics inferred from sampling.
36,755 Questions
Write 89.851 to the nearest tenth?
Rounded to the nearest tenth, 89.851 is approximately equal to 89.9.
Will the distribution of the sample means follow the uniform distribution?
The distribution of the sample means will, as the sample size increases, follow the normal distribution. This is true for any given distribution (e.g. does not need to be a normal distribution). This concept is from the central limit theorem. It is one of the most important concepts in statistics, along with the law of large numbers. An applet to help you understand this concept is located at: http:/www.stat.sc.edu/~west/javahtml/CLT.html
Your 94 Ford Explorer XLT V6 is running at 3000 revs when speed is at 65 mph is this normal or high?
DO NOT mess with your idle air control, whoever posted that last answer did not read your whole qestion, i have a 94 ford explorer 4x4, at 65 i run 2500 rpms, your torgue converter isn't going into lockup mode, most likey cause is a selnoid inside the transmission shorted out, or your computer,note that this will over heat your transmissoin when your driving freeway speeds, if your driving these speeds on a daily basis this will reduce the life of your transmissoin.
It's time to see your doctor! Any lump should be investigated by your doctor. It may be something simple. Also, if you have been in a wooded area of any sort and there are tics in the area please let your doctor know this. You could have even gotten a bug bite of another sort.
What are the names of the measurements that fall beyond three standard deviations from the mean?
Outliers.
It is the tissue compartment in which the active drug is implementing its effect
To find the mean of numbers, add all of the numbers together and then divide them by the number of numbers there are.
For example if I want to find the mean of 1, 2, and 3. 1+2+3= 6 and there are 3 numbers that I am using to find the mean (1, 2, and 3). So I divide 6 by 3 and get 2 which is the mean.
Why is it helpful to give the range when you descirbe the data?
it is the difference between the smallest and the biggest value
What are the mean median mode and range for 5966118and 4?
Mean= 5,9,6,6,1,1,8,4 = (1,1,4,5,6,6,8,9)/8 = 5 Median= (5+6)/2 =5.5 Mode= 1 ans 6. Range= (9-1) = 8
The 68-95-99.7 rule is applicable for a Normal distribution.
The Normal Distribution is determined by two parameters: the mean (m) and the standard deviation (s). They are normally denoted by Greek letters but there is no telling what this rubbish browser will do to them.
Anyway, these are used to calculate z-scores for observations. The z score for an observation x is (x - m)/s.
The rule is that
68% of the observation lie within -1 < Z < 1 : that is within 1 standard deviation of the mean;
95% of the observation lie within -2 < Z < 2 : that is within 1 standard deviation of the mean;
68% of the observation lie within -3 < Z < 3 : that is within 1 standard deviation of the mean.
Also, the Normal distribution is symmetrical so 50% of the observations are for z < 0.
Now, 1 - 68% is outside of -1 < Z < 1. That is, the two regions Z < -1 and Z > 1 = 32% and so, by symmetry, each is half as much which is 16%. Thus the first of the above rule also implies the following probabilities:
- 16% for Z < -1 and so 84% for Z > -1
- 16% for Z > 1 and so 84% for Z < 1
Now, given that m = 70 and s = 15
(a) X < 55 => Z < (55 - 70)/15 = -1
So prob (X < 55) = 0.16
(b) X < 40 => Z < (40 - 70)/15 = -2
and so, prob(X < 40) = 2.5%
(c) X < 85 => Z < 1
S0 prob (X < 85) = 84%
(d) Prob(X < 100) = 97.5%
(e) Prob(X > 85) = 16%
1 From a pack of 52 playing cards what is the probability of picking?
there are 4 1's or aces in a pack of 52 cards. Probability of picking an ace=4/52=1/13
Each roll has (6 x 6) = 36 possible outcomes.
A 7 or 11 can be rolled in 8 ways:
1--6, 6--1
2--5, 5--2
3--4, 4--3
5--6, 6--5
The probability is (8/36) = 2/9
Doubles can be rolled in 12 ways:
1--1 and reverse
2--2 and reverse
3--3 and reverse
4--4 and reverse
5--5 and reverse
6--6 and reverse
The probability is (12/36) = 1/3.
The probability of both of these rolls happening consecutively is (2/9 x 1/3) = 2/27 = 7.41% (rounded)
What is 50 over 330 as a percentage?
Expressed as a percentage, 50/330 x 100 = 15.15 recurring (that is, 15.151515...) percent.
Pl tell the a to z numaric value?
what? i am just gonna tell you pi=3.14 cause i dont get what you mean.
