Consider the price has a normal distribution. The price Mean is 84, and the price Standard deviation is 8.What is the probability the price will be between 94 and 76 ? 0.736 0.336 0.836 0.136

Q: the mean is 146, and standard deviation is 35. A score of 251 is how many z-scores above the mean?

A:

Q: In a college class, the average IQ is 115. Assume that the distribution is normal and that the…

A: In a college class, the average IQ is 115. Assume that the distribution is normal and that the…

Q: Enter all answers to the nearest tenth. A day care program has an average daily expense of $75.00.…

A:

Q: In an examination in Statistics, the mean grade is 72 and the standard deviation is 6. Find the…

A: Given that ; Population mean (u) = 72 Standard deviation = 6  By using standard normal distribution…

Q: Scores on a test have a mean of 6 and a standard deviation of 9. Michelle has a score of 57. Convert…

A:

Q: Decide if the following statement is true or false. Explain why. It is possible to have a standard…

A: We need to decide if the given statement that " It is possible to have a standard deviation of -2…

Q: If the probability of defective bolt is 0.1, find the mean and the standard deviation for the number…

A: Given the probability of a defective bolt is, 0.1 That is, p=0.1 The total number of bolts is, n=400…

Q: Suppose that the weight of male babies less than 2 months old is normally distributed with mean 11.5…

A: From the provided information, Mean (µ) = 11.5 pounds Standard deviation (σ) = 2.7 pounds X~N (11.5,…

Q: The lengths of pregnancies are normally distributed with a mean of 266 days and a standard deviation…

A:

Q: Omar is trying out to be a firefighter.  On the written exam, the mean of everyone who takes the…

A:

Q: Calculus I scores at College A have mean 70.21 and standard deviation 15.32; Calculus I scores at…

A: Calculus I scores at College A have mean 70.21 and standard deviation 15.32;Calculus I scores at…

Q: onsider this data set { 9, 3, 8, 8, 9, 8, 9, 18}. Find the standard deviation, s. Round off your…

A: given data, 9,3,8,8,9,8,9,18we have to find out the standard deviation(s) for the given data. x…

Q: A population has mean 27 and standard deviation 12 . What is the data value that has a z-score of -2…

A: Given data, Mean=27 sd=12 z=-2 x=?

Q: The sick leave time of employees in a firm in a month is normally with a mean of 100 hours and a…

A: Let X be a continuous random variable of employees sick leave time in a firm in month (in hours) is…

Q: art professor gives an A to any student in the top 9% of the distribution. The grades are normally…

A: Given X~N(mean μ=60, standard deviations σ=5) P(X>b)=9%

Q: A distribution of data has a mean of 26 and a standard deviation of 2. How many standard deviations…

A: Population mean μ =26 Population standard deviation =2

Q: the mean is 146, and standard deviation is 35. A score of 181 is how many z-scores above the mean?

A:

Q: In a normal distribution, 10% of the items are over 125 and 35% are under 60. Then the mean value is…

A: In a normal distribution, 10% of the items are over 125 and 35% are under 60.i.e.  P(X>125)=0.10…

Q: the mean is 146, and standard deviation is 35. You can infer that 97.72% of female students have…

A: Introduction: For a normally distributed random variable, X with mean μ, and standard deviation σ,…

Q: The mean is 146 and the standard deviation is 35. A score of 41 is how many z-scores below the mean?

A:

Q: IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. Find the…

A: Reviewing information, Given, X : Individual's IQ score X~N(μ=100 , σ=15)

Q: ndard deviation is sample of 45 indiv

A: a) The average number of kilos of meat is 90 and SD is 10μ=90σ=10n=45b) The average number of kilos…

Q: Suppose that the weight of male babies less than 2 months old is normally distributed with mean 11.5…

A: According to the given information, we have Mean = 11.5 Standard deviation = 2.7

Q: The mean critical reading score for seniors who took the SAT in 2018 was 536. If the standard…

A: Given Mean μ=536, standard deviation σ=115  X=435

Q: The mean for a data set is 61. The standard deviation is 4, and the z-score is -0.34. Find the raw…

A: Mean(µ) = 61Standard deviations (σ) = 4 z-score (z) = -0.34 Formula for z-score is given by  z = (x…

Q: what is the z score for a person who received an SAT mathematics score of 685?

A: Here Given, The mean mathematics score for seniors who took the SAT in 2018 was 531. If the standard…

Q: Determine whether the following graph can represent a variable with a normal distribution. Explain…

A: The normal distribution has bell shaped curve.

Q: The average number of kilos of meat a person consumes in a year is 110 kilos. Assume that the…

A: 1)GivenMean(μ)=110standard deviation(σ)=12sample size(n)=45

Q: The mean of 7 consecutive integers is 10. What is the standard deviation?

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Q: A mean of 200 and a standard deviation of 50. Find P60, the score which separates the lower 60% form…

A: