Suppose there are 2 red balls and 4 yellow balls in a box. Two balls are drawn from the box without replacement. What is the probability that both balls selected are yellow?

Q: 1 1 1 - Given that P(A or B) P(A)=, and P(A and B) 9₁ O A. 71 252 127 O B. 252 5 O C. 63 O D. 55 252…

A: P(a or b) = 1/4 P(a) = 1/7 P(a and b) = 1/9 P(b) = ?

Q: that out of the 50 customers who purchased a desktop computer last month,34 also purchased a service…

A: Given the 50 customers who purchased a desktop computer last month, 34 also purchased a service plan…

Q: . An additional data value is added to a dataset. The new value is far below the rest of the data.…

A: Here Standard deviation Indicates the how data is spread from Mean value.

Q: Problem 1. Regression Statistical X Y 7 6 9 6 6 3 12 5 9 6 5 4 3 4 9 7 8 5 10 7 1. Set up the…

A: Since you have posted a question with multiple sub-parts, we will solve first 3 sub-parts for you.…

Q: The accompanying summary data on total cholesterol level (mmol/l) was obtained from a sample of…

A: From the provided information,

Q: 2 Use the table below to answer the questions that follow X X² В 64 12 144 16 256 20 400 24 576 28…

A: The data is given in the table: X X2 8 64 12 144 16 256 20 400 24 576 28 784 ∑X=108…

Q: F. For the following data set, complete the table and determine the mean, median, mode and standard…

A: Given:The frequency distribution is given.Find:Complete the table.Mean, median, mode and standard…

Q: As part of a study of the treatment of anemia in pre-menopause women, researchers measured the…

A: GivenMean(x)=6.35standard deviation(s)=1.95sample mean(n)=46

Q: Two variables have a linear correlation of 0.97. Which of the following is true? a. The variables…

A: Given data  Linear Correlation coefficient r = 0.97 We have to identify true properties.

Q: 3. An architect wants to determine the relationship between the heights (in feet) of a building and…

A:

Q: F. For the following data set, complete the table and determine the mean, median, mode and standard…

A:

Q: Consider a t distribution with 13 degrees of freedom. Compute P(−1.86 < t < 1.86). Round your answer…

A: (a) Consider a t distribution with 13 degrees of freedom. The objective is to compute P(−1.86 &lt; t…

Q: defective. To prove this, a random sample of 189 out of 395 products were tested. Is there a…

A: From the given information we conduct Hypothesis test.

Q: What is the probability of randomly selecting a cat?

A: here given Table    Cat Dog Total student 11 29 40 professor  20 17 37   31 46 77 use…

Q: After the premiere of the new comedy Bumblebee, moviegoers were asked in a quick poll whether they…

A: It is given that, out of 25 adults,16 said they liked the movie, whereas out of 50 teenagers, 39…

Q: Question 11 Please help me answer the question. Image attached The following data represents the…

A: To find the shape of the distribution

Q: Assume that 12 jurors are randomly selected from a population in which 74% of the people are…

A: To find the required probability from the given probability distribution table.

Q: A random sample of 24 observations is used to estimate the population mean. The sample mean and the…

A: Given information- Sample size (n) = 24 Mean x̅ = 104.6 Standard deviation (s) = 28.8 We have to…

Q: A certain person considers that he can drink and drive: usually he believes he has a negligible…

A:

Q: Use the ogive to the right to approximate the sample size.

A: Here Given  Ogive  of No of students and No of Hours

Q: 3. A manager wants to determine if there is a significant difference between the daily wages for…

A: In the given scenario, a manager wanted to examine the difference between the wages of semiskilled…

Q: What is the probability of randomly selecting a Old product, given you selected a Student? New…

A: The provided information is    New product Old product Totals Student 23 17 40 Professor 16…

Q: The table below gives the estimated world population (in billions) for various years. 1980 1990 1997…

A: Let X=Years: 1980,1990,1997,2000,2005,2011  Let Y=Population: 4400,5100,5852,6080,6450,7000

Q: The table below gives the amount of time students in a class studied for a test and their test…

A: X values  Y values 1031.52.751.52 7875908997858180

Q: Google it: According to a recent report,  66%  of Internet searches in a particular month used the…

A: According to guidelines we solve first three subparts when given multiple subparts.

Q: Q1) b- for the following data, (19, 32, 26, 71, 88, 45, 59), the Harmonic Mean (H) is 37.4406…

A:

Q: 3. The table below shows the characteristics of cases and controls from a case-control study into…

A: we know that there are mainly four type of the scale to represent the data.  this scales are,…

Q: The well-known psychologist Dr. Elbod has established what he calls his Generalized Anxiety Scale…

A: Slope is the changing variable. In the regression equation, the slope provide the change happen in…

Q: We want to conduct a hypothesis test of the claim that the population mean number of holding…

A: This is a hypothesis testing of single mean. Given that, Population mean, μ=3.6 Sample mean, x=3.5…

Q: At the cafeteria, Edan has a choice of three soups, four types of sandwich, and two desserts. In how…

A: At the cafeteria, Edan has a choice of three soups, four types of sandwich, and two desserts.  Here…

Q: You are management for a chain of department stores. Your analytics team believes that the…

A: Given datayou are a management for a chain of departement stores.Here n=48x=17p=25%

Q: A group of 59 randomly selected students have a mean score of 29.5 with a standard deviation of 5.2…

A: Given data n=59 mean=29.5 standard deviation=5.2 confidence interval is 90%

Q: A state lottery randomly chooses 7 balls numbered from 1 through 38 without replacement. You choose…

A: A discrete random variable is a variable whose values can be obtained by counting. Though, the…

Q: What is the probability of randomly selecting a Old product, given you selected a Student?

A: here use given Contingency table and Bayes Rule  Define Event   S = student  F= Professor  New…

Q: Identify the rejection region by following the steps in identifying the appropriate rejection…

A: From the provided information, Sample size (n) = 50 The test is two tailed. Level of significance…

Q: Q1) b- for the following data, (19, 32, 26, 71, 88, 45, 59), the Harmonic Mean (H) is 37.4406 O…

A: Given dataset is 19,32,26,71,88,45,59

Q: Consider using a z test to test Ho: P = 0.7. Determine the P-value in each of the following…

A: Given :  p = 0.7

Q: Question 4 A survey of 25 grocery stores revealed that the average price of a gallon of milk was…

A: Given that: Sample mean, x¯=2.98 Sample standard error, SE = 0.10 Confidence level = 98%

Q: the number of girls (out of 2 children) in each family. Is this a random variable, and if it is,…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer one question at a…

Q: 2. Use Excel to construct a calibration curve (a plot of abso complex), using solution 1 as a 0 M…

A: Concentration  Fe3+ 0.15 SCN-1 5x10-4 HNO3 0.1   Sol Absorbance 1 0 2 0.27 3…

Q: One country’s annual rainfall has a normal distribution with mean of 100 inches and standard…

A:

Q: In a study of pain relievers, 50 people were given product A, and all but 15experienced relief. In…

A: Given: Product A: n = 50 X = 15  people experienced relief. Product B: n = 20 X = 9 people…

Q: Suppose your marketing department feels like 36% of customers prefer a certain feature for a…

A: a) The null hypothesis is: H0: p = 0.36

Q: 56 62 78 80 84 68 80 68 66 find out the covariance matrix using excel sheet and please explain it…

A: The question is about  to find out covariance matrix Given :

Q: Which of the following pairs of events is mutually exclusive? a. Drawing a face card or drawing a…

A: We have to find pairs of events which is mutually exclusive

Q: In a certain town, 30% of the people are Conservatives; 50% Socialists; and 20% Liberals. In this…

A:

Q: Portfolio ABZ has a daily expected return of 0.0634% and a daily standard deviation of 1.1213%.…

A: Portfolio is used to measure the return percentage of the investment. Portfolio variance measure the…

Q: QUESTION 3 A machine that produces a major part for an airplane engine is monitored closely. In the…

A: Given,margin of error(E)=0.04standard deviation(σ)=0.30α=1-0.95=0.05α2=0.025Z0.025=1.96      (from…

Q: Consider a t distribution with 22 degrees of freedom. Compute P(t ≤ −1.06). Round your answer to at…

A: The given t distribution has 22 degrees of freedom.

Q: 2) What is 3A-2B if -3 1 4 Matrix A-2 5 -1. 4 and Matrix B= 0 -2 -2 4

A: Sol 3A-2B:- 3-31-245-1-24-30-2-24=-93-61215-3-24-30-2-24