Find out the arithmetic mean and standard devia- tion from following data : Variable Frequency Variable Frequency 54 5-10 2 20-25 10-15 25-30 11 15-20 29 30-35 6

Q: Ten students of B. Com., class of a college have obtained the following marks in statistics out of 1...

A: Here use given data for  standard deviation   

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Q: Five pulse rates are randomly selected from a set of measurements. The five pulse rates have a mean ...

A: Given data,54,82,53,90The mean of 5 pulse rates is 67

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Q: What's the population standard deviation s? O= 1 3. 04

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Q: A normal population has mean u = 36 and standard deviation 0 = 7 (a) What proportion of the populati...

A: Given that  X~N(μ= 36 , σ= 7 ) μ= 36 , σ= 7 Formula for Z-score Z=(X-μ)/σ

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A: We have given that  Success of probability p =2%=0.02 Number of trials n=12 X~binomial (n ,p) NOTE:-...

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A:   Sample sizes n1=45      , n2=50        Sample means X̄1=54      , X̄2=57        s1 =11          , ...

Q: Fill in the table below (last row is for sums). y ry -9 8 -11 8 -12 Sums Calculate the following by ...

A: We have given that,  The data set are: X :- 6,    8,    8 Y :- -9, -11, -12 Then,  We will find the ...

Q: Does the confidence interval not change for population proportion vs sample proportion

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Q: ted from a sampte data se Συ- 138 Ey? = 1812 Ex = 148 y = Σ a? = 1980 %3D termine the least squares ...

A: Given data,

Q: Ten students of B. Com., class of a college have obtained the following marks in statistics out of 1...

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Q: 3. A random variable X takes values between 0 and 4 with a cumulative distribution function F(x) for...

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Q: 3.How many Instagram followers does a typical celebrity have?

A:   Ans)   According to the ASA ( Advertising Standards Authority ) , anyone who have more than 30,000...

Q: a mean monty corumpton of 00 wh Assume he poaton stadand deviton is 13 Wh At a010, can you port te c...

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Q: 3.1 Area under the curve, Part I: Find the probability of each of the following, if Z-N(H = 0,0 = 1)...

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Q: The mean number of eggs per person eaten in the United States is 273. Do college students eat a diff...

A: As per the Bartleby guildlines we have to solve first three subparts and rest can be reposted.... Gi...

Q: Given a normal distribution withu= 102 and a = 20, and given you select a sample of n 16, complete p...

A: Note: Hi, thank you for the question. As per our company guideline we are supposed to answer only fi...

Q: Over 100 genetic loci harbor schizophrenia-associated variants, yet how these variants confer liabi...

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Q: lustration 17.25. The income distribution of a group of 10,000 persons was found to be normal with m...

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Q: n a survey of 2072 adults in a recent​ year, 734 made a New​ Year's resolution to eat healthier.   C...

A: Given data,Total no adults n=2072Adults made a New​ Year's resolution to eat healthier is x=734

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A: Note: Hi there! Thank you for posting the question. As you have posted multiple questions, as per th...

Q: 13. Use the Theory-Based Inference applet to determine the p-value to investigate whether climate ch...

A: It is given that Sample size n = 83 Sample mean = 324.6 Sample SD = 88.3 Population mean = 370

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A: From the given data Identify the null and alternative hypotheses. Choose the correct answer below.

Q: Find out the quartile coefficient of skewness in a series where Q, mean = 18. = 18, Q, = 25, mode = ...

A: Solution-: Given: Q1=18,Q3=25,Mode=21,Mean=18 We find the quartile coefficient of skewness=?

Q: As part of constructing the 95%-confidence interval, we would choose which value for ta2 O 2.345 1.6...

A: We have given the statement  n= 16 Mean= 67 Standard deviation = 7.509

Q: Calculate any measure of di wing distribution of the number of particles er ve substance : of partic...

A: Standard deviation (SD) is the most commonly used measure of dispersion Given data, Classes Lower...

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A: Let X denote the amount of two leaves. Given that X follows N(mean = 110, SD = 25), then  Z = (X - m...

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Q: Problem 46 : Calculate the arithmetic mean and standard deviation for the following data : Class int...

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Q: I. The result of a nationwide NCAE in Mathematics ability are normally distributed. Below is the dat...

A: Percentile rank : Percentile ranks are sometimes expressed as a number between 1 and 99, with 50 bei...

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Q: The area under the normal curve between z = 0 and z =- 1 is the normal curve between z = 1 and z = 2...

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Q: For the following probability distribution: x f(x)   0 0.01   1 0.02   2 0.10   3 0.20   ...

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Q: The probability distribution of the random variable X represents the number of hits a baseball playe...

A: We have given that  Probability distribution of discrete random variable.  Mean = E(x)=∑x.p(x)  

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Q: Are birthdays "evenly distributed" throughout the year, or are they more common during sor year than...

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Q: What will be the interpretation and report for this

A: Given:

Q: 1. Let X represent the number of times Norman visits an Internet Cafe to play video games in a one-w...

A: Note: Hi, thank you for the question. As per our company guideline we are supposed to answer only fi...

Q: T18=0-98, r13=0•44, and r23=0•54 Calculate the partial correlation coefficient between first and the...

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Q: (a) The graph shows a Standard Normal Distribution. You are given 1 or 2 z-score(s) and need to shad...

A: a) It is given that the graph shows the standard normal distribution.

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Q: In a frequency distribution, the coefficient of skewness based on quartiles is 0.5. If the sum of th...

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Q: In a survey of 2072 adults in a recent​ year, 734 made a New​ Year's resolution to eat healthier. Co...

A: We have given that  Sample size n=2072 Favorable cases x =734 Sample proportion p^=x/n  =734/2072 =0...

Q: Pearson's coefficient of skewness for a distribution is 0.4 and coefficient of variation is 30%. Its...

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Q: Jaily demand for gladiole at a flower shop is approximately normally distributed with mean sales 12 ...

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Q: An investigation is performed to evaluate two new experimental treatments for allergies. 18 subjects...

A: Given that,n1 = Sample size for control group = 6 n2 = Sample size for Experimental Treatment 1 = 6...

Q: 3.418 +0.123 6.3 + 0.09 46288 + 1551 428.351 + 0.27 0.01683 + 0.0058

A: Given data, type the following values correctly ?