If p(A) = 0.11, p(B) = 0.15 and p(A and B) = 0.26, are A and B independent? %D

Q: Doctor Specialties Below are listed the numbers of doctors in various specialties by gender. Psychia...

A:

Q: Out of 800 farnilies with 5 children each, how many would you expect to have (i) 3 boys, (ii) 5 girl...

A: We have given that  Number of families (N)=800 Number of children (n)=5  Then we have to find expect...

Q: 1. Analyze and answer the following problems. Evaluate the expression -6 + 19C15. Find the unknown v...

A:

Q: From which company does Gabriel more likely to get an offer of Php 45,000 or more? Explain your answ...

A: here given,  Company X offers a starting salary per month with a mean of Php 39,000 and a standard d...

Q: An unknown distribution has a mean of 90 and a standard deviation of 15. A sample size of 80 is draw...

A: Obtain the probability that the sum of the 80 values (or the total of the 80 values) is more than 74...

Q: Suppose the number of radios in a household has a binomial distribution with parameters n=14 and p=6...

A:

Q: Explore! Exercises 9 and 10 provide two data sets from “Graphs in Statistical Analysis," by F. J. An...

A: (a)   Use EXCEL to construct the scatter plot.   EXCEL procedure:   Go to EXCEL Go to Insert menu S...

Q: Is the regression equation for predicting Y in terms of X the same as the regression line for predic...

A: Here we have to define  Is the regression equation for predicting Y in terms of X the same as the re...

Q: An article in the Journal of Environmental Engineering reported the results of a study on the occurr...

A: The dependent variable is chloride concentration. The independent variable is watershed. This is sim...

Q: Are the sample distributions symmetrical? Explain Some statistics books define an outlier in a data ...

A: Given:

Q: The elasticity of a polymer is affected by the concentration of a reactant. Two random samples of si...

A: The given is two random variables follows normal distribution. The variable with low concentration h...

Q: A survey was conducted among 50 PUP students to know the brand of vaccine they had for the first 2 d...

A: given that  among 50 PUP student  revealed that 20 students had both Sinovac and Astrazenica while 1...

Q: What is the probability that the finishing time of a single randomly selected runner is within 5 min...

A: Runners in a race have a mean finishing time of 91 minutes and a standard deviation of 16 minutes. I...

Q: Determine whether the following statements are true or false. Provide justifications afterwards. For...

A: Central tendency : central tendency is very helpful.It tells U.S.A. however traditional or 'average'...

Q: Suppose two dice (one red, one green) are rolled. Consider the following events. A: the red die show...

A:

Q: The weights in kg of milk deliveries to a processing plant are shown below: 45 49 50 46 42 39 47 42 ...

A: Given data: 45, 49, 50, 46, 42, 39, 47, 42, 51, 48, 48, 45, 45, 41, 46, 37, 46, 47, 43, 33, 56, 36, ...

Q: If you have data on your entire population, do you still need inferential statistics? why or why not...

A: Inferential Statistics (IS) allows to make predictions.

Q: 1. Three Hundred digits were chosen at random from a set of tables. The frequencies of the digits we...

A: Given Information: Digits 0 1 2 3 4 5 6 7 8 9 Total Frequency 28 29 33 31 26 35 32 30 31 25 300...

Q: Find the z-scores that are exceeded by the following proportions of the area under the normal distri...

A:

Q: The following Table gives the population of a town during the last 5 censuses. Estipate the populati...

A:

Q: Build a frequency distribution table for the following data. 3, 5, 7, 5, 8, 4, 11, 1, 15, 5, 12, 9, ...

A: Given data is 3,5,7,5,8,4,11,1,15,5,12,9,2,5,14

Q: The 95% C.I. is calculated as 95% C.I.= X ± 1.96 and the 99% C.I. is calculated as 99% C.I.= X +2.57...

A: Given : The 95% confidence interval (C.I) is given as : X¯±1.96σ2n The 99% confidence interval (C.I)...

Q: 1. What is the data value associated with a z-score of 2? 2. What is the data value associated with ...

A: Please note that as per our company's guidelines if multiple sub-parts are there in a question, we c...

Q: In a certain examination, the average grade of all 5 68.4 and that of all students in class B is 71....

A:

Q: Questien 11 A recent statistics exam yielded the following 10 scores. Construct a frequency polygon ...

A: Given The data is as follows: 81, 99, 77, 67, 93, 76, 79, 79, 71, 71

Q: Find the probability that the value of an item drawn at random from a normal distribution with mean ...

A:

Q: Evaluate the first quartile 0, for the following data. 1. 54, 69, 24, 75, 77, 83, 95, 100, 35, 110 O...

A:

Q: P(A ∪ B) = 0.9, P(B) = 0.8, P(A ∩ B) = 0.3.  Find P(A).

A:

Q: Testing for a Linear Correlation. In Exercises 13–28, construct a scatterplot, and find the value of...

A: Let X be the the lemon imports and Y be the crash fatality rate. Since there are 5 pairs of (x,y), t...

Q: Find the corresponding area using the attached z-table a) between z=0.25 and z=1.74 b) between z=-3....

A: a)P(0.25<Z<1.74)=?=P(Z<1.74)-P(Z<0.25)=0.9591-0.5987=0.3604   z-table :

Q: A student answers randomly three True (T) or False (F) questions. v Make a list of all possible outc...

A: Given Student answers randomly 3 True (T) or False (F) questions

Q: An aptitude test for selecting officers in a bank was conducted on 1,000 candidates, the average sco...

A: Given,sample size(n)=1000mean(μ)=42standard deviation(σ)=24

Q: An aptitude test for selecting officers in a bank was conducted on 1,000 candidates, the average sco...

A: Given,sample size(n)=1000mean(μ)=42standard deviation(σ)=24

Q: Obtain the median for the following frequency distribu- tion : 8 9 9 6 1 2 3 4 5 6 7 x: f: 8 10 11 1...

A:

Q: One ticket is drawn at random from a bag containing 30 tickets numbered from 1 to 30. Find the proba...

A:

Q: Compute the standard deviation

A: The file contains the amount that a sample of nine customers spent for lunch ($) at a fast-food rest...

Q: Find the median from the following table : Marks No. of students Marks No. of students 0-10 2 40-50 ...

A:

Q: Many car companies provide maintenance services to new cars for a certain period of time, e.g., 2 ye...

A: In the given problem, the tire manufacturer wants to study the rotation effect on the tire wear. As ...

Q: For a distribution the first four moments about zero are 1, 7, 38 and 155 respectively (1) Compute t...

A: Given that :  First four moment about zero ( origin)  u1 = 1   u2 = 7  u3 = 38 u4 = 155 By using mom...

Q: 1. On a final examination in Mathematics, the mean was 76 and the standard deviation was 5. Determin...

A: Since you have asked multiple questions, we will solve the first question for you. If you want any s...

Q: Price (Tk.) 25 37 40 45 48 50 55 70 Demand (kg) 10 8 7.5 4.5 3 2 a. Determine the coefficient of cor...

A: We have given that,  X :- 25, 37, 40, 45, 48, 50, 55, 70 Y :- 10, 8, 9, 7.5, 5, 4.5, 3, 2 Then,  We ...

Q: Questien 2 The rg e s e number of or acderdsi the last year or a samgle of 25 dven Noumbe id e Wne T...

A:

Q: The mean height obtained from a random sample of size 100 is 64 inches. The standard deviation of th...

A:

Q: For some electronic component, the time until failure has Gamma distribution with parameters α = 2 a...

A: Given: α=2λ=2

Q: What's the probability that in 100 spins, the number of grand prizes is 27 or more? 0.9599 0.0401 1....

A:

Q: Example 11. Acollar manufacturer is considering the production of a new type of collar to attract yo...

A:

Q: A distribution has a population mean of 15 and a population standard deviation of 4. If X is a norma...

A:

Q: Whenever Suzan sees a bag of marbles, she grabs a handful at random. She has seen a bag containing t...

A:

Q: 1. What percent of the area under the normal curve is between z= 0.85 and z = 2.5? 2. What percent o...

A: The Z has standard normal distribution i.e. Z~N0,1

Q: One ticket is drawn at random from a bag containing 30 tickets numbered from 1 to 30. Find the proba...

A: