Range = 38 Mean = 28.5555556 Variance = 147(253)/(300) Standard deviation = 12.27 ⠀ ⠀ 19, 40, 42, 7, 29, 45, 23, 17, 35 ⠀

Q: Describe about the mean absolute deviation.

A:

Q: Scores on a test have a mean of 86 and a standard deviation of 13. Jerrica has a score of 94.…

A:

Q: The weights of men in their 30s are normally distributed with a mean of 190 pounds and a standard…

A: From the provided information, Population mean (µ) = 190 pounds Population standard deviation (σ) =…

Q: Run an appropriate test to compare variance between x1 and x2. What is the name of the test you…

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Q: Q3. Consider the following exam scores of all students in a class. 39, 15, 27, 21, 33, 24, 18, 36,…

A: Given data :  39,15,27,21,33,24,18,36,42,30

Q: What do the mean deviation, variance and standard deviation all have in common? How is this common…

A: Mean deviation, standard deviation and variance all measure the spread of the distribution.Mean…

Q: Explain why it makes sense that the standard deviation of X is in the denominator of the formula…

A: Standard deviation of X merely serve to scale the units of the coefficients and standard errors in…

Q: How to find the standard deviation

A: Mean:Mean is a measure of center in case of quantitative data. Mean of a data set is the sum of the…

Q: Why roles are reserved for the variance and particularly for its square root, the standard…

A: Variance and standard deviation: Variance measures absolute variability in a data set, calculated…

Q: When we compute a standard deviation, we are trying to get a measure of the average distance of…

A: Let us understand better by assuming X1, X2, ...., Xn be n data points. Then,…

Q: What formula is used to find the standard error of mean?

A: we have to give correct formula to find standard error of mean.

Q: ou find the standard deviation in the most easiest way?

A: The standard deviation is used to calculate the variability of the data set. It tells us about the…

Q: The "true" variance is also the population variance True False

A: # Relation between True varience and population varience ?

Q: The sum of squares of deviation is least if measure from а. Median b. Mean

A: the sum of squares of deviation is least when measured from ?

Q: the mean only given the standard deviation? I know I can get the variance from standard deviation.…

A: The formula for calculating the  variance and standard deviation is,

Q: I also need the standard deviation for the above question.

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Q: Describe about mean square between.

A: In ANOVA, “SS” stands for “sum of squares”, “df” stands for degrees of freedom, F is for the test…

Q: The average exam score is 63 with a variance of 33.  Your exam has a Z score of 0.96. What is your…

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Q: How does one calculate the standard deviation?

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Q: in new yorkl cxity college , the  weight of male atheletes follow a normal distributin owith  with…

A: It is given that, weight of male athletes follow a normal distribution with st deviation  = 35 lbs…

Q: for the above i got the mean of 1, can you help me w the standard deviation and the variance

A: From the above parts Here we have Since, X ~ Binomial (n = 3 , p = 1/3)  Therefore, n = 3 , p = 1/3…

Q: Regression and correlation are used for estimation. Select one: True False

A: The most commonly used estimation techniques for investigating the relationship between two…

Q: Q3 :- :- if you know the standard deviation = 3 for measured data, what is the variance ?

A: Given in question  Standard deviation = 3

Q: The variance is sometimes a negative number.

A:

Q: Explain why we need to square the deviations from the mean in our calculation of the standard…

A: 3) The deviation formula is, Deviation=Xi-Mean In the formula Xi is individual scores.

Q: How would the P-value change? The P-value would remain unchanged because the variability measured by…

A: Hypothesis is an assumption that is being tested.

Q: How does the slightly different perspective make the standard deviation even more accessible?

A: Standard deviation: It is a measure of how far each observed value is from the mean and standard…

Q: What relation exists between the average deviation of the mean?

A: Note: Hi there! Thank you for posting the question. As your question is not clear, as per the…

Q: If no data values are given but the mean and standard deviation is given how do I find the variance…

A: The formula for the variance and standard deviations are,

Q: What is the standard error of the mean?

A: Standard error: Standard error is a measure which explains how accurate are the sample means to…

Q: Explain why it makes sense that the standard deviation of X is in the denominator of the formula…

A: The standard error of the regression slope, s (also called the standard error of estimate)…

Q: Explain Why can’t the value of the standard deviation ever be negative?

A: Standard deviation is basically the square root of the variance and variance quantifies the amount…