Calculate the mean and standard deviation for the following distribution : *: 25 35 45 55 65 75 85 f: 3 61 132 153 140 51 2

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A: Solution is given:

Q: Find out the correlation coefficient by the concurrent deviation method: 84 80 86 86 88 102 100 110 ...

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Q: (a) In a survey conducted by a mail order company a random sample of 200 customers yielded 172 who i...

A: a)Givenn=200x=172p^=xn=172200=0.86Confidence interval= 95%

Q: Complete for P. Ps, and P, 20° 75 80 13. Month Daily Wages Frequency P25 000-P29 000 10 P20 000-P24 ...

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A: Solution:

Q: Given that the mean weight of senior high school students is 65kg with a standard deviation of 10kg....

A: Solution: Let X be the mean weight of senior high school students.  Assumed that X has normal distri...

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Q: Calculate the mean deviation (from median) from the following data : Class interval Frequency Class ...

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Q: Q1. Which of these is not a parameter of the population distribution of X? A. Sample Mean of X. B. V...

A: which of the following is not a parameter of the population distribution x ?

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Q: In a standard normal curve, what is the area between z = 0 and z = -2.09? O a. 48.17% O b. 48.12% O ...

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Q: 600 500 400 300 1400 1600 1800 2000 square Footage cor(price, footage) ## [1] 0.7088847 pricemodel|t...

A: 3. The objective is to find the linear correlation coefficient r.

Q: The 65th percentile in a set of data is 80. What does this mean? A At least 35% of the scores are le...

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Q: 2. The following table shows the probability distribution of the number of watches that a jeweller w...

A: Given probability distribution: Number of watches Probability P(X) 0 0.05 1 0.20 2 0.30 3...

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A: Required probability is P(Z>z0)=0.0132

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Q: 6. Calculate Coefficient of Correlation between the values of X and Y given below : Values of X: Val...

A: Correlation is a quantitative measure of the degree of linear relationship  that may exist between t...

Q: A researcher wants to identify the average number of hours spent by senior high school students play...

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Q: The following are the marks obtained by a batch of 9 students in a certain test: SI. No. Marks S1. N...

A: Given data is SI.No Marks (Out of 100) 1 68 2 49 3 32 4 21 5 54 6 38 7 59 8 66 ...

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A: Hi

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A: The standard normal variable is z, which follows the normal distribution with the mean of 0 and stan...

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Q: A bag contains 5 white and 8 red balls. Two drawings of 3 balls are made such that (a) the balls are...

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Q: Given that the mean weight of senior high school students is 65kg with a standard deviation of 10kg....

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Q: Summarize example 1.2 of the example applications of experimental design by determining the statemen...

A: Statement of the problem: Identifying the process variables which are affecting the response. Object...

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Q: At one university, the mean distance commuted to campus by students is 16.0 miles, with a standard d...

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Q: 2. Breast concer provalence table (in loo,000) can be sumnmarized as in the next Female Male 0,003 S...

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Q: terms in the sequence without getting the power of 3. 39 310 311 312 313 314 315 Figure 31 Ones 3 di...

A: Figure 31 32 33 34 35 36 37 38 39 310 311 312 313 314 315 Ones digit 3 9 7 1 3 9 7 1 3 9 7 1 3 9 7...

Q: s the following a Probability Distribution? 1 P(X=x) 0.45 0.35 0.28 -0.12

A: Any real function defined from a sample space corresponding to the probability is known as random va...

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Q: study was done to ascertain the effectiveness of a flu vaccine . Two groups of people ( vaccinated a...

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Q: The proportion of households with pets is estimated to be 85% The proportion of 200 investigated hou...

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Q: For a bivariate distribution, the lines of regression are 3X + 12Y = 19; 3Y + 9X = 46 Find the means...

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