The mean of small dogs is 4.1 and the standard deviation is .9, what is the probability of choosing a dog that weighs the sum of mean+ standard deviation?, wouldnt the probability be 0 since you cannot find a small dog exactly at one point?

Q: . What is the probability that the student will get into a college whose entrance score is 550?

A:

Q: The university campus has a record of temperatures in recent years, which have a mean of 25.5…

A: To test whether the data follows normal distribution or not, let us consider Chi-square test for…

Q: The test scores in a class are normally distributed with a mean score of 77. if the standard…

A: The distribution of test score are normally distributed with mean of 77. Now consider the standard…

Q: An advertising agency has stated that 20% of all television viewers watch a particular program. How…

A: From the provided information, An advertising agency has stated that 20% of all television viewers…

Q: The probability that a patient recovers from a delicate heart operation is 0.85. What is the…

A: The standard deviation of the binomial random variable obtained by the formula is σ=np(1-p), where…

Q: If the mean fill volume is 12.1 fluid ounces, what should the standard deviation of fill volume…

A: From the provided information, Mean (µ) = 12.1 fluid ounces X~N (12.1, σ) Here X be a random…

Q: The average score on the SAT is 1020, with a standard deviation of 180. If you take a random sample…

A: We have given that Mean(µ) = 1020 Standard deviation(σ) = 180 Sample size (n) = 50

Q: The lengths of human pregnancies are normally distributed with a mean of 268 days, and a standard…

A: Given that, X~N(268,152) n=10

Q: A psychologist believes that it will take at least an hour for certain disturbed children to learn a…

A:

Q: The length of an episode of the hit TV show, Fake Blood, is normally distributed with a mean of 62…

A: Given that  X~Normal(μ=62 , ?=4.5) Mean=μ=62 , Standard deviation=?=4.5)

Q: oretta, who turns  91  this year, has heard that the mean systolic blood pressure among the elderly…

A: Given: Sample size (n)= 19 Sample mean x¯=130 Sample standard deviation (s) = 20 Hypothesized mean…

Q: according to the government data the probability that a woman between the age of 25 and 29 was never…

A: Given, Probability that a women between the ages of 25 and 29 was never marries is 40%. i.e. p =…

Q: The weight of a bag of sugar is normally distributed with mean of 550g and a standard deviation of…

A:

Q: The manufacturer of cans of salmon that are supposed to have a net weight of 6 ounces tells you that…

A: Given,sample size(n)=33mean(μ)=5.97standard deviation(σ)=0.1

Q: The mean of a test score was 21.2 and the standard deviation was 5.1 . Identify the rest scores that…

A: Given Data Mean µ= 21.2. Standard Deviation σ= 5.1. Assuming that the given data is obtained from a…

Q: Suppose the exam average in a class is 82% with a standard deviation of 2. What proportion of…

A:

Q: . A biologist is interested in studying the effect of vitamin supplements on deer mouse body length.…

A:

Q: The manufacturer of cans of salmon that are supposed to have a net weight of 6 ounces tells you that…

A: GivenMean(μ)=6.04standard deviation(σ)=0.21Sample size(n)=33

Q: The probability that a patient recovers from a delicate heart operation is 0.85. What is the…

A: Number of patients (n) = 8 p(patient recovers) = 0.85 Let "X" be the number of recovered patients…

Q: Based from the record, the mean weight of the newborn babies is 4.8 with a standard deviation of…

A: Given that  Mean=4.8 Standard deviation=0.75 Sample size=60

Q: If a z-score is equal to −2.05, it is 2.05 standard deviations below the mean. True or False

A: The standardized difference, which measures the difference between a random score (i.e., a value…

Q: What is the z-score of x = 9, if it is 0.133 standard deviations to the left of the mean?

A: Given X=9,

Q: due to the increasing price of apartments each year, houston chronicle reported that rent of 1 bed 1…

A: Given that  μ=1200σ=500n=20 Consider, the probability that the price is more than 1100 is,…

Q: The standard deviation of the scores on a skill evaluation test is 290 points with a mean of 1286…

A: We have to find given Probability.

Q: The mean and standard deviation of 20 items was found to be 10 and 2 respectively. Later it was…

A:

Q: The score on a test have a mean of 100 and standard deviation of 15. If a personnel manager wishes…

A: From the given information we find the cut off score.

Q: A distribution has standard deviation of 41.9 and mean of 74. What is the coefficient of variation?

A: Given standard deviation=41.9 mean=74

Q: The variance of a sample of 81 observations is equal to  64, what is  the standard deviation?

A: We have to find standard deviation

Q: The probability that a patient recovers from a delicate heart operation is 60%. There are 20…

A: Solution: Let X be the number of recovered patients and n be the sample number of patients under an…

Q: The mean height of a population of men is 70.8 inches and the standard deviation is 3.2 inches. What…

A:

Q: The mean of a normal probability distribution is 600; the standard deviation is 20. About 95% of…

A: GivenMean(μ)=600standard deviation(σ)=20

Q: A certain data set has a mean of 60 and a standard deviation of 12. Given that the data set has 120…

A:

Q: The scores on a university examination are normally distributed with a mean of 70 and a standard…

A: The scores of a university are normally distributed with mean 70 and s standard deviation 10.Given…

Q: For a medical study, a researcher wishes to select people in thr middle 75% of the population based…

A: Introduction: Definition: Z-score A Z-score is a numerical measurement that describes a value's…

Q: Given that pregnancies have a mean of 266 days and standard deviation of 16 days, it is found that…

A: We have given that,  X be the random variable from normal distribution with mean = 266 and standard…

Q: A university dean wishes to estimate the average number of hours that freshmen study each week. The…

A:

Q: The mean of a test is 86 with a standard deviation of only 4. How likely (what probability) is there…

A: Let X= score  Given, X follows normal distribution with mean = 86 and standard deviation = 4

Q: if an average score of exams was 74 points for 24 students  the 25th student got 64 points whats…

A:

Q: A food safety engineer has discovered that a food warmer has temperature problems. While they set up…

A:

Q: Based on various studies, it is known that the mean ACT-math score in America is 21 with a standard…

A:

Q: What is the z-score if our standard deviation was 2, mean of 49 and our specific observation is 47?

A: Given: Standard deviation = 2 Mean= 49 Specific observation =47 Determine the Z- score using the…

Q: A university dean wishes to estimate the average number of hours that freshmen study each week. The…

A: It is given that confidence level is 0.99, standard deviation is 2.6 and margin of error E is 0.5.

Q: Given a set of data that is skewed-right, there is at least _____ % of the data within 2 standard…

A:

Q: A manufacturer of a low-tar cigarette claims that its cigarettes contain an average of 16.3 mg. of…

A: Given information- Population mean, µ = 16.3 mg Population standard deviation, σ = 3.1 mg Let, X be…

Q: Loretta, who turns 91 this year, has heard that the mean systolic blood pressure among the elderly…

A: (a) The null and alternative hypothesis is; Ho: μ=120H1: μ>120 (b) Here we will be using…

Q: The average score of all pro golfers for a particular course has a mean of 70 and a standard…

A: It is given that, The average score of all pro golfers for a particular course has a mean of 70 and…

Q: It is possible to score higher than 1600 on the SAT, but scores 1600 and above are reported as 1600.…

A: Obtain the Z-score for the random variable X equals 1600. The Z-score for the random variable X…

Q: A variable is normally distributed with a mean of 120 and a standard deviation of 5. Four scores are…

A: Given information- Population mean, μ = 120 Population standard deviation, σ = 5 Since it is…

Q: The mean of the test is 89 with a standard deviation of only 4. How likely (what probability) is…

A: Consider,Mean (µ) = 89Standard deviation (σ) = 4

Q: The time it takes to fly from Paris to London is normally distributed. If the mean flight time is 80…

A: We are given with Normal Distribution.

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.