from year s of teaching ,a statsitics profeessor knoes  that Amy , her student 's  test scre  will be a  randonm variable with mean =  75 and variance = 25. what can be  the lowest estimate on  probability that Amy will socre  between 65 and 85.

Q: Fifty five percent of the students in a class of 135 of planning to go to graduate school, Find…

A: Answer: From the given data, Fifty five percent of the students are planning to go to graduate…

Q: 下riday Day of the Week no. of unit sol0 mon tue wed 4 Thu Sat dNT 3 Sunday 3.

A: Solution-: Let, X-be the number of unit sold We have following table: Day of the week X Monday…

Q: What is the variance of a set of 6 numbers: 1, 2, 3, 4, 5, 6?

A: The variance is calculated as the average of the squared differences of each number from the mean.

Q: In a certain population, the mean price of the stock prices was 230, the median was 262, the…

A:

Q: The top 5% of applicants on a test will receive a scholarship. If the test scores are normally…

A: According to the given information in this question We need to find the lowest score

Q: The mean of a distribution is 23, the median is 24 and the mode is 25.5. It is most likely that this…

A:

Q: A correlation of 0.7 was found between time spent studying and percentage on an exam. What is the…

A: The correlation between time spent studying and percentage on an exam is 0.7. That is, r=0.7. The…

Q: You have a dataset with a mean of 2, median of 3 and variance of 9.  What is the skewness?

A: Given that  Mean = 2 , Median = 3 , Variance = 9

Q: In an experiment to assess the effect of listening to audiobooks while driving, participants were…

A: xx21018103632410091018081105611151369869721969378779691030106090010651134225101310261698627430441108…

Q: Lake Martin and Lake Fields are two large local lakes inhabited by white sturgeon. A while back…

A:

Q: find mean devaition of this data??

A: Calculate Mean deviation from the following grouped data Class Frequency (f) 110 - 119 1 120…

Q: the variance of a data set is 144 and mean is 72 then coefficient of variance is

A: Given,variance(σ2)=144mean(x¯)=72

Q: Energy consumption for single family comes is a mean of 1050kw and standard deviation of 218kw. Find…

A: Given information- Population mean, μ = 1050 kw Population standard deviation, σ = 218 kw We have to…

Q: Dr. Smith administered a test to her statistic class with 25 questions that were worth one point…

A: If n is multiplied by each observation, the new value for mean is, E(n×X) = nE(X) If n is multiplied…

Q: What is the analysis of variance.Interpret results

A: The analysis of variance is a statistical tool which splits the overall or aggregate variability in…

Q: The grades for the latest statistics exam are normally distributed. The mean was 93 with a standard…

A: According to question given that Mean (μ)=93Standard deviation (σ)=4As we know that relation between…

Q: What is the variance of the data set 14,23,9,12,21,18,8

A:

Q: The heights (at the shoulders) are: 600mm, 470mm, 170mm, 430mm and 300mm. Find out the Mean, the…

A: Here, x x-x (x-x)2 600 206 42436 470 76 5776 170 -224 50176 430 36 1296 300 -94 8836…

Q: Edit question fast please. The lengths of Atlantic Croaker Fish are normally distributed with mean…

A: Here's mean is 10 and standard deviation is 2. We will use z-standard normal distribution.

Q: A given set of data has a specific variance. Describe what will happen to the variance when all the…

A: Suppose, data is X=(10,15,20,25,30)

Q: What is the variance of the data set 14,23,9,12,18,8

A: Given Data :  XX 14 23 9 12 18 8 Below table will be used to calculate variance :…

Q: If the probability that an object dropped from a certain height will strike the ground is 80 percent…

A: Solution- Given that , let p denote the probability that an object dropped from a certain height…

Q: DESA Early Childhood researcher published that 5% of all births by university student’s result in…

A: From the provided information, DESA Early Childhood researcher published that 5% of all births by…

Q: Suppose we measure GPA for people in our class, we find the mean is 2.8 and the median is 3.2. What…

A: Given: Mean = 2.8 Median = 3.2

Q: For a binomial distribution, Mean the distribution. 7, and Variance = 11. Comment on

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Q: Make a Normal Probability Plot for age with TI-84 calculator and show screenshots of calculator

A: Given :

Q: variance of [

A: Given,       6 ,7 ,10 ,11 ,12 ,13 ,16 ,18 ,25

Q: the mean is 7.0 the median is 6.5 , and the mode is 6.0 how would you describe this distribution in…

A: It is given that, the mean is 7.0, the median is 6.5, and the mode is 6.0.

Q: Find the variance and standard deviation of 10,15,13,12,5. Show your solution

A:

Q: there are 75 students in the class and 20 students are getting a+ grade in the class find the mean…

A:

Q: A professor know that her statistics students' final exam scores have a mean of 79 and a standard…

A:

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.