QUESTION 2 2.1 For the following data values: 23 35 21 20 28 32 19 39 20 18 37 29 19 25 34 26 24 31 22 30 Find the mean and standard deviation of the above data 2.2 A bag contains 8 green balls and 4 black balls. 2.2.1 Find the probability of randomly drawing (in succession) 2 green balls when the first ball is replaced in the bag.  2.2.2 Find the probability of randomly drawing (in succession) 2 balls of the same colour when the first ball is not replaced in the bag.

Q: Which of the following is wrong a.Categorical data can be converted to frequency which can be used…

A: Categorical variables are those values that can be categories such male female.

Q: Ten people work in an office. They are paid hourly rates of $14 In the place of "XX" write last two…

A: Given data is appropriate for measures of central tendency. Central tendency is used to find the…

Q: An airliner carries 200 passengers and has doors with a height Heights of men are normally…

A: It is given that μ=69, σ=2.8

Q: An executive's telephone log showed the lengths of 60 calls Initlated during the last week of July.…

A: b) Enter the data in Excel.

Q: The following frequency table summarizes 60 data values. What is the 3rd quartile of the data? Value…

A: n=60   To Find: Q3

Q: Use the data in the following table, which lists drive-thru order accuracy at popular fast food…

A: P(D) = 168/1121

Q: 11. A sample of 50 people has a variance of 9. In that case, the standard deviation is a. 3; 441 b.…

A:

Q: Question 1/ To build a 99% Cl for the mean of a population, you take a random sample and find these…

A: Calculate the mean and standard deviation of the data. x (x - mean_x)2 20.3 0.006 18 5.648…

Q: What is the requested percentage?

A: 4.70c) In  this question, we have given Mean=513 S.D=130 To find the percentage for the score less…

Q: Question1 A Mobile store in Amman is fixing mobiles the average number of the monthly repaired…

A: According to the answering guidelines, we can answer only three subparts of  a question and the rest…

Q: B. 0.73 11. Which of the following probability notations represents the z-score? A. P(z 27) C. P(…

A:

Q: lecture(12.5):  The mean of the population is 50. The standard deviation is 10. If a person row…

A:

Q: Seth asked a random sample of 20 students how much cash they had in their pocket. The following…

A: given data,n = 20here we have to find out the sample standard deviation for grouped data, x f fx…

Q: Q6: The following data show the number of hours spent watching television for 12 randomly selected…

A:

Q: A researcher is trying to determine if there is a significant relationship between age and annual…

A: ANOVA: Analysis of variance is used to test the difference between more than two means.   Mean: It…

Q: Below are the jersey numbers of 11 players randomly selected from a football team. Find the range,…

A: Given data: 40, 91, 95, 39, 96, 78, 23, 98, 37, 85, 9

Q: he following table gives the extra travel time in hours for peak-period travelers in urban areas…

A: x¯ = ∑xn (Average) _______________ s = ∑(x-x¯)2n-1 (Standard dev)

Q: Problem #1: IQs are known to be normally distributed with mean 100 and standard deviation 15. In a…

A:

Q: 6. The frequency table below represents quiz scores. Using the frequency table find the following…

A: To find the median follow the rules as given:- 1. Find cumulative frequency for each class. 2.find…

Q: What is the requested percentage?

A: 140b) In this question, The given data mean=513 S.D=130 To find the percentage to score more than…

Q: Suppose that the scores on Midterm 3 for Principles of Statistics is normally distributed with…

A:

Q: 1. A box contains tickets 1, 1, 2, 2, 3. (The average of the tickets is 1.8 and the standard…

A: Given Information: There are five tickets in the box. (1, 1, 2, 2, 3) The average of the tickets is…

Q: A population has a mean of 50 and a standard deviation of 11. If a random sample of 36 is taken,…

A: As per our guidelines we can solve first three sub part of question and rest can be reposted.…

Q: Playing Basketball and Volleyball Play Basketball 20 15 INo O Yes Yes No Play Volleyball Which of…

A: A stacked is a graphical representation of observations that is used to show the distinct aspects on…

Q: Drivers pay an average of u = $690 per year for automobile insurance. The distribution of insurance…

A: Solution: Let x  be the insurance payments has normal distribution with mean μ=$690 and standard…

Q: You want to test whether or not the following sample of 30 observations follows a normal…

A: From the given information, the number of observations in the sample is 30.

Q: pooled is the symbol for:

A: here use basic of notation of some statistics

Q: According to a study done by UCB students, the height for Martian adult males is normally…

A: From the given information we find the solution for the given problem.

Q: c. Histograms of Data Set I and Data Set 2 are ow. Whic one has to have the larger standard…

A: We are given histograms for dataset 1 and dataset 2.The objective is to identify the histogram with…

Q: Question 3: CUI Attock has three telephone lines. A caller gets a busy tone if all the lines are in…

A:

Q: A national non-profit organization is trying to recruit women to serve in local and state…

A: Given: population proportion = 0.31 sample proportion = 0.41 Simulation results

Q: Find the quartile deviation and coefficient of quartile deviation from the following table.

A: quartile deviation               Q.D = Q3-Q12coefficient of Q.D = Q3-Q1Q3+Q1 for marks arrange the…

Q: The amount of calories consumed by customers at the Chinese buffet is normally distributed with mean…

A: (a)  Let X denote the amount of calories consumed by customers. The distribution of X is,…

Q: ork Quest Part 1 of 3 Blood alcohol concentrations of drivers involved in fatal crashes and then…

A:

Q: The number of ants per acre in the forest is normally distributed with mean 43,000 and standard…

A: This question requires more accurate results. I will use excel to solve this question.…

Q: . 18 For a binomiał distribution the mean is 6 and the standard deviation is V2. Write out all the…

A:

Q: What is the requested percentage?

A: In this question, the given data is Mean=513 S.D.=130 To find the percentage for the score lies…

Q: A bag contains 3 red and 2 orange balls. You pick five balls from the bag without replacement. What…

A: Since you have posted multiple questions, we will provide the solution only to the first question as…

Q: Which of the following are true statements? I. The distributions have the same mean. II. The…

A: From the back-to-back stemplot, it can be observed that the range of the distributions are same also…

Q: a. What is the distribution of X? X - N( b. Find the probability that a randomly selected Private…

A: Private nonprofit four-year colleges charge, on average, $27,599 per year in tuition and fees. The…

Q: In a left-skewed distribution: Pls complete the sentence Select one: O a. None of the above. O b.…

A:

Q: Distribution of ê, Distribution of ê, Vhich statement is the most accurate? Select one: a. Point…

A: It is an important part of statistics. It is widely used.

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.