Suppose u=(1,2...19,20) and the sets A, B & C are contained in U and are given by A=(2,6,8,9, 10, 11, 19) B=(2,4,7,8,10,11,14,15,16,17,20) C=(2,4,6,8,10, 12,14,16, 18 & 20) What's the union of set a &b

Q: True or False In a probability model, all possible outcomes together must have a probability of 1.

A: True or False   In a probability model, all possible outcomes together must have a probability of 1....

Q: The arithmetic mean and the standard deviation of a set of 9 items are 43 and 5 respectively . If an...

A:

Q: The table given below gives the Reven intelligence score and age of a group of students of Class-X. ...

A: Given:   Age in year Intelligence score 15 16 17 18 19 41-45 5 6 4 2 1 36-40 2 3 4 3 2 31...

Q: question State the relationship between quartile deviation, mean deviation and standard deviation in...

A:

Q: The covariance of two perfectly correlated variables X and Y is 96. Determine ox and Oy if it is kno...

A:

Q: How would you use the normal distribution to find approximately the frequency of exactly 5 successes...

A:

Q: The probability that a management trainee will remain with a company is 0.60. The probability that a...

A:

Q: For the numbers 5, 6, 7, 8, 10, 12, if S, and S, are the respective Root Mean Square Deviations abou...

A: Root mean square deviation is also known as root mean square error. Since it is used to estimate the...

Q: For certain data the following regression equations were obtained: 4х — 5у + 33 % 0 20x + 9y - 107 =...

A: The two regression equations are given as: 4x -5y + 33 = 0 20x -9y -107 = 0

Q: Consider the following hypothesis test: Ho:u 12 A sample of 25 provided a sample mean x = 14 and a s...

A:

Q: A small store keeps track of X = the number of customers who make a purchase during the first hour t...

A: Value of x 0 1 2 3 4 Probability P(x) 0.1 0.1 0.1 0.1 0.6

Q: Exercises 32: The data in Table 2 represent the rates of return of the Standard and Poor's Index of ...

A: Given Information: Consider the data that shows the rates of return of the standard and poor's index...

Q: In an introductory statistics class of 50 students, there are 11 freshman, 19 sophomores, 14 juniors...

A: Given that , an introductory statistics class of 50 students, there are 11 freshman, 19 sophomores, ...

Q: The​ p-value is

A: Given : ZSTAT = -2.76

Q: On a trial basis, State College admitted 300 students from the lowest third of their high school gra...

A: For a study, the 300 students who have lowest third graduation grades, divided into 3 groups where f...

Q: Bý applying the method of differences calculate the pearson r for the following data. 11. 18 16 15 1...

A:

Q: An advertising executive wants to estimate the mean weekly amount of time consumers spend watching t...

A:

Q: From the clinical trial of an experimental growth factor drug, we got the following data, where D is...

A: 1 0.5 2 2.5 3 2 4 4 5 3.5 6 6 7 5.5 D = Dosage Unit ∆n = total unit of neutrophil The...

Q: If, in a sample of n = 25 selected from a normal population, X= 60 and S= 10, what is your statistic...

A:

Q: The following data shows how many employees showed up to work every day for two weeks 12 18 09 16 11...

A: We have given that data  I want to find interquartile mean and standard deviation.  Interquartile ra...

Q: The following table gives the cost of living index for 1998 with 1986 as base for different commodit...

A:

Q: MY NOTES PRACTICE ANOTHER Coal is carried from a mine in West Virginia to a power plant in New York ...

A:

Q: Heights of me are normally distributed with a mean of 176cm and a standard deviation of 7cm.what is ...

A: here is given that, mean = 176   and standard deviation is 7 we will use z-standard normal approxima...

Q: The diameter of a brand of tennis balls is approXimately normally distributed, with a mean of 2 78 i...

A: Here in the above question is given that, Mean is 2.78    standard deviation is 0.03 And n is 12

Q: In a research study, a researcher studied the relation between calf circumference, hip breadth and n...

A: Given :

Q: The following information related to works in an industrial town is given: Average wage per month in...

A: Both the above two questions given are same.   Answering one 

Q: Given the following stem and leaf plot what is the first quartile? 10 0 ...

A: From the given stem and leaf plot First quartile = ?

Q: Look at the 4 probability rules beow , an provide a REAL LIFE example for each. Also, with a Real L...

A:

Q: Two items R and S belong to one test of numerical ability. Item R is passed by 50 and failed by 40 s...

A:

Q: At the 0.01 level of significance, determine whether die is true (or unifor

A: Test is that whether die is true. It is given that Level of significance = 0.01 Number of times die ...

Q: 3rd Data Set: 14,12,11,13,14,14,13,13,13,14,13,13,1,20 (SD=0.90)

A: Interquartile range (IQR) is the positive difference between First quartile (Q1) & third quartil...

Q: 10. 1.1 1.9 2.4 4.1 4.6 6. 8.1 8.3 9.1 9.8 y 10 25 41 261 439 2,041 18,271 22,130 | 56,151 119,550 I...

A: Given data: x y 1.1 10 1.9 25 2.4 41 4.1 261 4.6 439 6 2041 8.1 18271 8.3 22130 ...

Q: A random sample of size n1 =15 is selected from a normal population with a mean of 76 and standard ...

A: Introduction: Define X1, X2 as the random variables, denoting a randomly selected observation from t...

Q: You are given the values of sample means (X) and the range (R) for ten samples of size 5 each. Draw ...

A: Here we should draw the Mean chart and Range chart. Please find the solution below. 

Q: Find probable error, when the coefficient of correlation is 0.8 and number of items is 64 and interp...

A: Given: Coefficient of correlation, r=0.8 Number of items, n=64

Q: In an introductory statistics class of 50 students, there are 11 freshman, 19 sophomores, 14 juniors...

A:

Q: Consider that X1, X2 X3, X4, X5 is an independent random sample where X, follows a normal distributi...

A: Solution: Given information: Xi~N(μx=3.2, σx2=3.2)      i= 1,2,..,5n1=5  Sample size of XYi~N(μy= 27...

Q: Avery has a loyalty card good for a discount at her local pharmacy. The item she wants to buy is pri...

A: Given that  Avery has a loyalty card good for a discount at her local pharmacy. The item price befor...

Q: 4. A die is rolled 100 times with the following distribution: Humber 1 2 3 4. Observed frequency 17 ...

A:

Q: Calculate the seasona! indices by the 'ratio to moving average' method from the fotnowing data. Year...

A:

Q: Find the missing information in the following table : R

A: It is given that Number of observations in A = NA = 10 Number of observations in B = NB = 8 Number o...

Q: 2.141 Blond hair types in the Southwest Pacific. A mutation of a pigmentation gene is theorized to b...

A: Introduction: It is required to identify any outliers from the graph, and to state the genotypes for...

Q: Basic illustration corp. produces and sells product X. The selling price is 25 and the variable cost...

A: Sales increase 800,000 to 900,000 Degree of operating leverage = 5 Expected profit to increase =? 

Q: Use Fisher 's form find the price index number of the following table: Commodity Unit Base Year Curr...

A:

Q: A survey was conducted in respect of marital status and success in examinations. Out of 2000 persons...

A:

Q: Question Percentage of a population that uses a social media The accompanying table contains the per...

A: Given:   Sr. No. Data 1 5 2 6 3 16 4 19 5 25 6 28 7 29 8 32 9 36 10 37 11 ...

Q: A country in Africa is trying to restore its giraffe population and is carefully keeping track of ho...

A: For an unspecified population (i.e., the total number of giraffes in the area), the sample proportio...

Q: You are given the values of sample means (X) and the range (R) for ten samples of size 5 each. Draw ...

A: The control charts are used to check whether the process is in control or out of control. The x bar ...

Q: Problem 1 Let X1, X2, X3, .., X, be a random sample from an exponential distribution with parameter ...

A:

Q: The absolute measure of association for a case-control study is the odds ratio. Justify your answer.

A: yes The absolute measure of association for a case-control study is the odds ratio.  because odd rat...