1. Find the mean and standard deviation of the sample data in
the table. (Round your answers to two decimal places.)
x 1 2 3
4 5
f(x) 1 3 15
13 3
mean=
standard deviation=
2.
Question Part
Points
Submissions Used
The table defines a discrete probability distribution. Find the
expected value of the distribution.
x 0 1 2 3
Pr(x) 3/16 5/16 1/4
1/4
1. Find the mean and standard deviation of the sample data in the table. (Round your...
3. Find the mean (p). (Round your answer to 3 decimal places) (2 points) the mean=8.177 6 7 8 9 10 P(x) 0.236 0.063 0.214 0.262 0.225 4. Find the standard deviation (C) (Round your answer to 4 decimal places.) (3 points) the standard deviation=1.462 Suppose that samples of 100 are generated from the probability distribution and the mean of each sample is recorded. (2 points) 5. Find the mean of the sample means. (3 points) 6. Find the standard...
Find the mean and standard deviation of the given probability distribution. Round your answers to 2 places after the decimal point, if necessary. x P (x) 0 0.05 3 0.27 4 0.3 6 0.2 7 0.18 Mean = Standard deviation =
Find the mean, variance, and standard deviation for the probability distribution. (Round your answers to two decimal places.)Pr(x)=x/28 ; x=1,2,3,4,5,6,7meanvariancestandard deviation
1. Find the mean, the variance and standard deviation. The number of dogs per household in a small town. Dog: 0, 1, 2, 3, 4, 5 P( x): 686, 195, 077, 022, 013. 007 2. Score (x): 1, 2, 3, 4, 5 Frequencies: 24, 33,42, 30, 21 A. Construct a discrete probability distribution B. Find the mean, the variance and the standard deviation.
1. A population has a mean of 60 and a standard deviation of 30. Samples of size 16 are randomly selected. Calculate the standard deviation of the sample distribution X. 2. Samples of size 16 are drawn from a population. the sampling distribution for X has a standard deviation of 0.25. Find the standard deviation of the population. 4. Tires are found to have a mean life of 40,000 miles. The standard deviation is 8000. A sample of 400 is...
The table defines a discrete probability distribution. Find the expected value of the distribution. x 7 8 9 10 Pr(x) 1/3 1/3 1/3 0
QUESTION 8 Find the standard deviation of the following discrete probability distribution. Round off to three decimal places. A = 0.45 X P(x) 0 A 10.4 21-A QUESTION 8 Find the standard deviation of the following discrete probability distribution. Round off to three decimal places. A = 0.45 X P(x) 0 A 0.4 2 1-A 1
Assume that x has a normal distribution with the specified mean and standard deviation. Find the indicated probability. (Round your answer to four dec places.) # 39; 0 = 14 P(50 SXS 70) - Need Help? Read 13. 0-M1 points BBUnder Stat12 6.3.013 My Notes Ask You Assume that x has a normal distribution with the specified mean and standard deviation. Find the indicated probability. (Round your answer to four de places.) - 115; 0 = 15 P(x 2 90)...
16 measured data points have a sample mean of -34 and a standard deviation of 1.78. Determine the best estimate of the mean value at 90% probability level. Find a, where the best estimate of the mean value is expected to fall ±a about the sample mean.
Calculate the mean, the variance, and the standard deviation of the following discrete probability distribution. (Negative values should be indicated by a minus sign. Round intermediate calculations to at least 4 decimal places. Round your final answers to 2 decimal places.) x-36-26-15-4P(X=x)0.320.360.210.11MeanVarianceStandard deviation