Gasoline prices (per litre) for the last five weeks were P50.95, P51.25, P52.50 P49.30 and P51.70. What is the sample variance?

Q: Illustrate the relationship between the sampling distribution of p and the normal distribution?

A: It is known that, the conservative law of thumb for the sampling distribution of sample proportion…

Q: What is the variance and standard deviation of 2, 4, 5, and 6?

A:

Q: Determine the variance, standard deviation and coefficient variation

A: Obtain the value of the standard deviation.   Use EXCEL Procedure for finding the value of standard…

Q: Find the sample variance and sample standard deviation for the sample data 21,17,13,25,9,19,6 and 10

A:

Q: Based on the boxplot and descriptive statistics, which group shows more variability in narcissism…

A:

Q: Calculate the sample variance of the following score? 5,5,5,5,5

A:

Q: What is the mean, standard deviation and variance of the time the subjects stayed balanced?

A: We have given that, The data of 8 females. The balance times data is, 34, 38, 29, 23, 33, 28, 32,…

Q: What is sample variance?

A: In very simple words, Sample variance means the variability in the sample around its average value.…

Q: What is formula for variance for sample?

A: Variance measures absolute variability in a data set, calculated with respect to the mean. That is,…

Q: Which of the sections had the most variance in the scores?

A: Given: Section Mean Standard deviation English 20.3 6.8 Math 20.7 5.4 Reading 21.4 6.5…

Q: What are the important characteristics of the sampling distribution of the mean?

A: The sampling distribution of the mean generally has normal distribution as the sample size is large…

Q: What is variance?

A: Variance is a measure of dispersion or spread of a data distribution. Variance of a data…

Q: Why is the formula for sample variance different from the formula for population variance ?

A: The sample variance is calculated on the same lines as the population is calculated with the same…

Q: The Interquartile Range is __________ The Sample Standard Deviation is ____________ The Sample…

A: The bar graph can be represented by data as  3, 2, 2, 4 In ascending order  2, 2, 3, 4  (even  =4…

Q: Find the sample variance and standard deviation. 6, 48, 15, 49, 38, 28, 34, 27, 32, 27

A: Formula to find sample variance is S2=∑Xi-X2n-1

Q: What is the variance of the following population of scores? scores: 5,2,5,4

A:

Q: The amount spent on textbooks for the fall term was recorded for a sample of five university…

A: According to the provided information, the data are $400, $350, $600, $525, and $450

Q: What is the sampling distribution in estimating the variance of a population? What are the…

A: The estimation population variance of the sampling distribution, or

Q: How does a small sample size increase the effect of an outlier on the mean in a skewed distribution?…

A: A skewed distribution mean one tail is longer than the other.

Q: What is the mean, variance and Standard Deviation?

A:

Q: What is the value of the sample correlation r?

A: It is given that Regression line : y = -3.05 + 0.10x Number of observations n = 13 Number of…

Q: What is the sample covariance?

A:

Q: What is the equation for The standard deviation of the distribution of sample proportions

A: Let p be the population proportion of successes.

Q: what is the sample variance and standard deviation of 21​,16​,3​,9​,11

A: The formula for sample variance and standard deviation is given by:

Q: The number of public school teachers strikes in pennsylvania for a random sample of school years is…

A: Use EXCEL Procedure for finding the value of sample variance.   Follow the instruction to obtain the…

Q: which one is more precise sample variance or population variance

A: We want to tell you which one is more precise.

Q: What is formula for the variance of the population?

A:

Q: Find the sample variance and standard deviation. 19, 13, 2, 9, 11 O

A: 19 361 13 169 2 4 9 81 11 121

Q: Find the variance of the probabilty distribution for the histogram

A:

Q: The age of all the patients in isolation ward of a hospital are (33, 15, 38, 26, 13, 41, 22, 19)…

A:

Q: A group of customer service surveys were sent out at random. The scores were 40, 70, 80, 00, 50, 40,…

A:

Q: What is the 25th percentile of a χ2 distribution with 20 degrees of freedom? What symbol is used to…

A: It is an important part of statistics. It is widely used.

Q: Two accounting professors decided to compare the variance of their grading procedures. To accomplish…

A: Null and alternative hypotheses: The hypothesis, which is pre assumed as true, tentatively settled…

Q: Add 7 to every output x. What happens to the mean and the variance? What are the new sample mean,…

A: Mean is one of the measures of central tendency and it tells about the middle part of the…

Q: What is the best point estimate for the population's variance if the sample variance is 41?

A: Given,sample variance(s2)=41

Q: Compute the sample variance for y = {2,26,24,40,-12,-6,10,28}

A:

Q: 5. How is the sampling distribution of the statistic displayed?

A: We have to find that  The sampling distribution of chi square Statistic :

Q: Find the sample variance and sample standard deviation for the sample data 21, 17, 13, 25, 9, 19, 6…

A: Here, x x-x (x-x)2 21 6 36 17 2 4 13 -2 4 25 10 100 9 -6 36 19 4 16 6 -9 81 10 -5…

Q: How do you find sample variance and population variance?

A: Sample Variance:      The variance is calculated using the sample data as given the sample variance.…

Q: Explain why s p is called the pooled sample standard deviation.

A:

Q: How to find the sample variance and standard deviation.   22 11 5 8 9

A: The mean of the given numbers is obtained as follows:

Q: The fuel efficiency, in miles per gallon, of 10 small utility trucks was measured. The results are…

A: Given the values 22, 25, 23, 27, 15, 24, 24, 32, 23, 22, 25, 22. We need to find the variance of…

Q: Find the sample variance and standard deviation. 7, 57, 14, 50, 32, 23, 30, 27, 26, 26 O

A:

Q: What is the difference between random variation and assignable variation?

A:

Q: pooled variance is 135.

A:

Q: In an activity, students are pulling marbles from a large jar containing blue and red marbles. In…

A: We need to identify suitable sample size

Q: Compose the score values for 3 samples that have the same mean and median, but differ in the amount…

A: Part 1   2, 4, 6 3, 4, 5 4, 4, 4     Explanation: Part 1   There are many different conceivable…

Q: We want to test if there is a difference in the amount the families in the two cities spend on…

A:

Q: What is the symbol for the sample variance?

A: Explanation: