I need a step by step break down on this question please show the steps on how to do it not the mean step by step break down . The last question I ask just showed the answer but not the break down on how you got it.

If the Data set of Mangos are: 1,1,2,3,5,5,6,3,2,2,1,0

1. E ( x^2 -x) please show the work break down with the answer

### Want to see the full answer?

Check out a sample Q&A here*star_border*

## Related Statistics Q&A

Find answers to questions asked by students like you.

Q: A criminologist is comparing car thefts in two cities. She finds the data for the number of cars…

A: Click to see the answer

Q: It is thought that a new process for producing a certain chemical may be cheaper than the currently…

A: From the provided information, The difference table can be obtained as: di = New process – old…

Q: The numbers of "near misses" recorded for the last 20 months at Lima International Airport are 3, 2,…

A: Assume Xi to be the random variable, representing the number of "near misses" for ith month at…

Q: George draws several samples from he same given population He then calculates the standard error…

A: Standard error (SE) : It is given as standard deviation dividing by square root of sample size (n).…

Q: There is always a tendency amongst human beings to break the red-light, which causes accidents in…

A: Answer :

Q: Two popular brands of tires for tractor-trailers are the Puma and the Eternal. Salma is a buyer for…

A: We have given that Sample sizes n1= 13 , n2= 15 Sample means xbar1= 57.38 , xbar2= 51.73 Sample…

Q: People often say “Distance makes the heart fonder.” Interestingly, due to pandemic related…

A: Note: As per my policy i can answer only three sub parts. kindly repost the remaining sub parts…

Q: Water specimens are taken from water used for cooling as it is being discharged from a power plant…

A: Note: Hi there! Thank you for posting the question. As there are several independent questions,…

Q: A crossover trail is a type of experiment used to compare two drugs. Subjects take one drug for a…

A: Introduction: Denote μ1, μ2 as the true mean pain levels experienced after taking Drugs A and B,…

*question_answer*

Q: Here is presented data to you about the books that Alexa writes every year. 3, 4, 5, 6, 7, 8, 2, 10…

A: State the hypotheses.

*question_answer*

Q: The mean sales prices for a sample of homes in a city was $250,000. The median sales price of these…

A: Given The mean sales prices for a sample of homes in a city was $250,000. The median sales price of…

*question_answer*

Q: You are going to convert raw score to z scores of -2, -1, 0, + 1, +2. The raw score is 8, 10, 17,…

A: We have given that the raw score is 8, 10, 17, 22, 6, 20, 21, 22, 19, 30. z-score = ( X-Mean )/S.D

*question_answer*

Q: Suppose that Dietitians recently recommended a 400 cal per meal and take her children of the age of…

A: Since you have posted a question with multiple subparts, we will solve first three subparts for you.…

*question_answer*

Q: Suppose that Dietitians recently recommended a 400 cal per meal and take her children of the age of…

A: The hypothesis test is a statistical method in which one using the sample data try to check the…

*question_answer*

Q: The results above were obtained because the sample means are close together. To construct the data…

A: Data of three treatments is given as: Treatment A Treatment B Treatment C 10 13 17…

*question_answer*

Q: The results above were obtained because the sample means are close together. To construct the data…

A: The data shows the three treatments with each 4 data values.

*question_answer*

Q: )Explain in details that how do you evaluate if your data are a good fit for the assumptions of…

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

*question_answer*

Q: A sample of blood pressure measurements is taken from a data set and those values (mm Hg) are…

A: The values of systolic and diastolic measurements are given. Sample size = n = 10. Mean is the ratio…

*question_answer*

Q: The correlation coefficient r is a sample statistic. What does it tell us about the value of the…

A: a) The hypotheses are given below: Null hypothesis: H0: ρ= 0 Alternative hypothesis: Ha: ρ ≠ 0. The…

*question_answer*

Q: The correlation coefficient r is a sample statistic. What does it tell us about the value of the…

A: Click to see the answer

*question_answer*

Q: It was discovered that the youngest person to retire was 48 years instead of 53 years. The numerical…

A: Given, Median age of retirement = 66 years The retirement age ranges from 53 to 75 years The shape…

*question_answer*

Q: A crossover trial is a type of experiment used to compare two drugs. Subjects take one drug for a…

A: Click to see the answer

*question_answer*

Q: On the day before the 2016 Presidential election, the mean of 3 polls of 100 Wisconsin voters found…

A: Click to see the answer

*question_answer*

Q: The mean gene expression in at least one group is significantly different from the mean gene…

A: We have given that From ANOVA test the pvalue is less than significance level 0.0001 We have to…

*question_answer*

Q: A survey was developed to estimate the average number of hours per week that adults spend…

A: Given : A survey was developed to estimate the average number of hours per week that adults spend…

*question_answer*

Q: Assuming there are 150 students in our statistics class, 20 of you have received 4 hours of study…

A: Given Data: Sample mean=75 Population mean=72 Population standard deviation=6 n=20 For one sample…

*question_answer*

Q: No. 2. . Suppose your statistics professor gave six examinations during the semester. You received…

A: The finite portion which has been considered from the population can be termed as the sample. i.e n…

*question_answer*

Q: A sample of 17 participants took part in a hearing experiment. Among other things, the absolute…

A: Here we are given a sample of 17 participants took part in a hearing experiment. Among other things,…

*question_answer*

Q: A production engineer wants to determine if two assembly lines are producing the same mean number of…

A: Click to see the answer

*question_answer*

Q: For the data set (−1,−2),(2,2),(5,5),(7,7),(12,11) find interval estimates (at a 80% significance…

A: Regression equation can be find by using excel: (I) Enter the data in excel under the column of x…

*question_answer*

Q: A psychologist examines long term retention of a learned task in a sample of n = 6 rats. At 90 days…

A: Given : sample size = n = 6

*question_answer*

Q: A psychologist examines long term retention of a learned task in a sample of n = 6 rats. At 90 days…

A: Given, The researcher wants to conduct a test to see if performance changes over time. So, here the…

*question_answer*

Q: A new weight-reducing technique, consisting of a liquid protein diet, is currently undergoing tests…

A: Given data, Difference = Weight before diet – weight after diet Person Weight Before diet…

*question_answer*

Q: A researcher wanted to examine the effect of a new math study skills program on second graders.…

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

*question_answer*

Q: The correlation coefficient r is a sample statistic. What does it tell us about the value of the…

A: Hey there! You have uploaded 2 different question. As per our policy we can answer 1 question at a…

*question_answer*

Q: A sample of job applicants is selected to analyze the number of years of experience the job…

A: The given data set is : { 1, 3, 3, 1, 2}

*question_answer*

Q: our friend told you that sample median is an unbiased estimator. You argue with him that it can only…

A: It is an important fact in statistics . It is widely used in estimation theory .

*question_answer*

Q: The sample means tend to be normally distributed around the true mean. That is, most sample means…

A: Click to see the answer

*question_answer*

Q: The correlation coefficient r is a sample statistic. What does it tell us about the value of the…

A: Click to see the answer

*question_answer*

Q: Water specimens are taken from water used for cooling as it is being discharged from a power plant…

A: Click to see the answer

*question_answer*

Q: One personality test available on the World Wide Web has a subsection designed to assess the…

A: Click to see the answer

*question_answer*

Q: The fingerprint of every finger can be classified into one of three basic patterns: a loop, a…

A: Binomial Distribution : A binomial experiment is a statistical experiment that has the following…

*question_answer*

Q: The table below gives the individual IQ scores of selected population (with N = 40). The IQ scores…

A: From the given information, the population with size N=40. The IQ scores range between 75 and 148.…

*question_answer*

Q: The director of research and development is testing a new drug. She wants to know if there is…

A: Given: Population mean (µ) = 384 minutes Sample size (n) = 79 Sample mean (x̅) = 386 minutes Level…

*question_answer*

Q: The human resource manager of company wanted to know how the Performance of the workers depend on…

A: multiple regression model

*question_answer*

Q: The human resource manager of company wanted to know how the Performance of the workers depend on…

A: Multiple linear regression

*question_answer*

Q: The human resource manager of company wanted to know how the Performance of the workers depend on…

A: Multiple linear regression

*question_answer*

Q: Choose the correct statement: Mode is the smallest measure of central tendency Mode is a measure of…

A: It is a single value within the range of data that represents a group of individual values in a…

*question_answer*

Q: A physical therapist wanted to know whether the mean step pulse of men was less than the mean step…

A: We have to identify p value from given table.

*question_answer*

Q: Pupillometer is a device used to observe changes in an individual’s pupil dilations as he or she is…

A: We want to find the 90% confidence interval

*arrow_forward*

*arrow_forward*

*arrow_forward*

*arrow_forward*

*arrow_forward*

*arrow_back_ios*

*arrow_forward_ios*