b) The following table gives the values of mean and variance of heights and weights of the 10th standard students of a school. Height Weight 46.50 kg? 28.09 kg? Mean 155 cm Variance 72.25 cm2 Which is more varying than the other?

Q: Two groups of students reported mean weights of 162 kgs and 148 kgs respectively. When would the…

A:

Q: In a certain population, the mean price of the stock prices was 230, the median was 262, the…

A:

Q: Suppose that we would like to test whether the variance of the length of a plaster panel is 20…

A: Given:  The sample number of examined panels are n=20. The sample variance is s2=18 millimeters. The…

Q: In a herd of longhern cattle the mean horn length is 52cm and h2 is 0.2. Predict the mean horn…

A: Heritability is a measure of additive effects of genes, it tells whether the observation variation…

Q: What is an everyday example of variance within samples?

A: If we need to know the variance within samples, we need to use ANOVA Test.

Q: If the Mean of a data set is 700 and the Variance is 49; Calculate the intervals used for the…

A: Given information, Mean of a data set = 700 Variance = 49 We have to calculate intervals using…

Q: A correlation of 0.7 was found between time spent studying and percentage on an exam. What is the…

A: The correlation between time spent studying and percentage on an exam is 0.7. That is, r=0.7. The…

Q: You have a dataset with a mean of 2, median of 3 and variance of 9.  What is the skewness?

A: Given that  Mean = 2 , Median = 3 , Variance = 9

Q: A researcher has collected the following sample data: 3, 5, 12, 3, 2. The mean of the sample is 5.…

A:

Q: the variance of a data set is 144 and mean is 72 then coefficient of variance is

A: Given,variance(σ2)=144mean(x¯)=72

Q: A researcher has collected the following sample data: 3, 5, 12, 3, 2. The mean of the sample is 5.…

A:

Q: Consider the variable, type of birth control practiced (e.g., an IUD, condoms, none, etc). Which…

A:

Q: Suppose the rate of misprints in the printed text from a given publisher is three misprints per one…

A: The question is about discrete probability distribution.Introduction :1 ) Let, X be discrete random…

Q: What is the variance using this equation, with the following data: 76, 88, 67, 80, 44, 65, 50, 98,…

A: Sol: Given data, 76, 88, 67, 80, 44, 65, 50, 98, 55, 45, 23, 44, 65, 78, 66, 56, 89, 76, 87, 29

Q: Why does the observed mean difference should not be taken seriously?

A: Mean difference(MD): Mean Difference is also known as Difference in means. Mean difference measures…

Q: Give two situations in which comparing two population standard deviations would be important

A: Two situations in which comparing two population standard deviations would be important is obtained…

Q: Use the probability distribution for the random variable x to answer the question. 1 2 3 4 p(x) 0.12…

A: From the provided information, x 0 1 2 3 4 p(x) 0.12 0.15 0.15 0.46 0.12

Q: What is the variance of the data set 14,23,9,12,21,18,8

A:

Q: Compute the mean, standard deviation and the coefficient of the variation of the data 10, 13, 15,…

A: Mean:The formula for finding mean is shown below:

Q: 1. Determine whether there is a significant difference on the perceived capabilities in research…

A: Anova is the analysis that used to compare the categorical variable which are numerical. It used to…

Q: A sample of 30 distance scores measured in yards has a mean of 7, a variance of 16, and a standard…

A: Given statistics:Consider the variable x represents the distance scores in yards.The given…

Q: What is the mean, variance, and standard variation of this data?

A: Data given 25,21.8,15.4,12.9,9.7,11.9,13.5,6.4,9,6.7,4.8,5,8,5.4,0.5,3.1,2,2.1,0.8

Q: The heart rate of humans are normally distributed with a mean of 90.3 bpm and std. dev. of 7.3 bpm.…

A:

Q: We have to compare the result of all variables using range,interquatile range,variance and standard…

A: As asked, for the given data we have to compare the result of all variables using the range,…

Q: What percentage the male population is between 72 and 76 inches in height?

A: The height of men in country is normally distributed with mean of 6 feet and variance of 16 inches…

Q: What proportion of variance in husband height is predictable from wife height? What proportion of…

A: Given that rXY=0.32 The proportion of variance in husband height is predictable from wife height is,…

Q: If the mean of grades in statistics = 65 and the variance : 400 , then the Z score of grade 50 =

A:

Q: The Sample mean and sample Variance of Fire Jata valves are X = 104 and 5² = 16. If three of the…

A: The sample mean of 5 samples is The sample variance is Three data values are, The objective is to…

Q: The median of a sample with data values of 8,19,12,17,16 is?

A:

Q: If the highest 8% of students in the final exam were rewarded. The mean for this exam was 120 & the…

A:

Q: there are 75 students in the class and 20 students are getting a+ grade in the class find the mean…

A: