through​ (d). A) What is the probability that X is less than 94​? B) What is the probability that X is between 94 and 96.5​ C) What is the probability that X is above 105.4​? D) There is a 68​% chance that X is above what​ value?

Q: In an exam attended by 1000 people, the average of the grades is 57 and the standard deviation is…

A:

Q: A distribution with a mean value of 8, a median of 6 and a mode of 5 is: a) symmetric b)…

A: Answer: From the given data, Mean = 8 Median = 6 Mode = 5 Here, Mean > Median > Mode So, the…

Q: d. For the 18 people, find the probability that the average coffee consumption is between 15.5 and…

A: d. Let x¯ denotes the average coffee consumption. The average coffee consumption for 18 people is,…

Q: . If the mean of some data set is equal to 10, then this necessarily implies:   a) 1/2 of the…

A:

Q: The following table lists the frequency distribution for a sample of students majors in DU. Find the…

A: Formula : Expected frequency = np

Q: 5. Is lack of sleep causing traffic fatalities? A study conducted under the auspices of the National…

A: From the provided information, Mean (µ) = 1550 Standard deviation (σ) = 300 X~N (1550, 300)

Q: .A coin is tossed 410 times. Use the normal curve approximation to find the probability of obtaining…

A: Comments: As per our company guidelines we are supposed to answer only one question. Kndly repost…

Q: 3. Assume can of Coke are filled so that the actual amounts have a mean of 12.00 oz and a standard…

A: Let X denotes the amount of Coke Assume that X follows normal distribution having mean 12 and…

Q: You asked the women in your book club how many times a week they go to t store. Your results are as…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

Q: In an exam attended by 800 people, the average of the grades is 65 and the standard deviation is…

A:

Q: A sample of size n=36 is randomly drawn from a normal population with population proportion p=0.58.…

A: Givensample size(n)=36population proportion(p)=0.58

Q: In an exam attended by 1000 people, the average of the grades is 75 and the standard deviation is…

A:

Q: A sample of n = 14 observations is drawn from a normal population with = 920 and a = 200. Find each…

A: From the provided information,

Q: random variable has a mean of 6.5 and a standard deviation of 3.45. With a random sample of 40…

A:

Q: Four rats are selected at random from a cage of 5 male (M) and 4 female (F) rats. If the random…

A: Total number of rats N = 9 Number of male rates K = 5 Rats chosen in sample n = 4

Q: Assume the scores at this school have the same distribution as national scores. What is the mean of…

A: here given , The scores of individual students on the American College Testing (ACT) Program…

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

A: As due to the honor-code, we are authorized to answer only 3 subparts for each question and that you…

Q: The pulse rate of adults in a given population follows a normal distribution with a mean of 70 and a…

A: From the given information, it is clear that,  Population mean μ=70 Population variance σ2=20 Sample…

Q: The weight of all athletes on a college track team (men and women combined).   A) Would the…

A: a. The distribution of the weight of all athletes on a college track team both men and women…

Q: The lengths of adult males' hands are normally distributed with mean 189 mm and standard deviation…

A:

Q: 27. The mean undergraduate cost for tuition, fees, room and board for a four-year institution was…

A: 27.The mean is $26489 and the standard deviation is $3204.

Q: In a normal distribution, about what proportion of cases falls within +/- 1 standard deviation from…

A: From the provided information,It is asked what proportion of cases falls within +/- 1 standard…

Q: In a distribution with a population mean of 60 and variance 25, the sample mean averages the…

A:

Q: In a distribution with a population mean of 70 and a standard deviation of 5, what is the standard…

A: Normal distribution in the center is generally denser and basically less denser at the tails. There…

Q: a. What is the distribution of X? X - N( 17 b. What is the distribution of ? ~ N( 17 0.8451✔ 08 08…

A: given data  X~N(17,5)x¯~N(17,0.8451)

Q: Suppose we select an simple random sample of size n = 100 from a large population having proportion…

A: Here we want to find correct p which follow approximately Normal distribution.

Q: 2. Consider Rolling a Fair six sided Dice with sides of 2, 3, 3, 4, 4, 5 (so replace the 1 & 6 with…

A: Given the experiment of rolling a fair xix sided dice with sides of 2, 3, 3, 4, 4, 5.

Q: Sample heights of twenty students in a class in inches: 60 62 62 63 64 64 65 65 66 66 66 67 68…

A:

Q: ) Find the mean, u, for the binomial distribution which has the stated values of n and p. Round…

A: given data  binomial distribution n= 676 p = 0.7 mean(μ) = ?

Q: 2. The average number of mice in a 5-acre rice field is estimated to be 80. Find the probability…

A: Given,The average no.of mice in 5 acre field is 80so, the average no.of mice in 1 acrefield…

Q: memory test, the test subjects are given a large number and asked to memorize it. Historical records…

A: Given that  p = 80% = 0.80 , n = 625

Q: A genetics experiment involves a population of fruit flies consisting of 2 males named Bart and…

A: Given that: 2 Males named Bar and Christopher. 2 Females named Debbie and Elena

Q: 3) Let X be random variable represents the weights of the vehicles follows the normal distribution…

A: The variable X follows normal distribution with μ=9099 kg and σ=19 kg.

Q: • A) Given the data Pulse Rate (beats per minute) Mean St. Dev. Distribution Males 69.6 11.3 Normal…

A: Note: As per my policy i can answer only one question. kindly repost the remaining one. Given data…

Q: distribution. Forty samples of n=25 people were taken from this population for non-refundable draws.…

A:

Q: According to a Survey, households in the city X spend an average of $24 per week on their leisure…

A: “Since you have posted multiple sub-parts of question , we will solve first three sub-parts of…

Q: 35) The mean score of a college entrance test is 500, the standard deviation is 75. The score…

A: Mean(μ)=500 standard deviation(σ)=75

Q: Suppose we want to estimate p, the proportion of undergraduate students who cheat One strategy to…

A: Given that Y1, Y2, . . ., Yn denote the ''1/0'' ''yes/no'' responses.

Q: a) Is between the mean and $35.00 per hour? b) Is more than $35.00 per hour? c) Is less than $20.00…

A: It is given thatMean, μ=29.81Standard deviation, σ=9.31

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.