Q6) From the Uniform Distribution, find the mean and standard deviation from the graph: f (x) 20 20

Q: z-score that has 73.6​% of the​ distribution's area to its right.

A: To find the z value, use the standard normal table to find the z-score which cuts off an area of…

Q: What is the distribution of X? X - N What is the median seedless watermelon weight? What is the…

A: According to our guidelines we are solving only first three sub-parts of a question and rest parts…

Q: hat is the Normal Distribution Probability where X is more than 268.66 for a mean of 145, and…

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Q: In a frequency distribution the coefficient of skewness based upon the quartile is 0.6. If the sum…

A: Skewness is used to measure the shape of the distribution. There are three types of skewness, they…

Q: The time required for housekeeping to clean a hotel room for the next customer varies between 25 and…

A: Obtain the time that represents the 70th percentile of this distribution. The time that represents…

Q: Q29. Explain about equal and unequal distributions.

A: Answer: For the given question,

Q: Mean 255, x is 230 and z score is -2 find standard deviation

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Q: The area of the rectangle depicting a uniform distribution is always equal to the mean of the…

A: The area of rectangle depicting a uniform distribution is not always mean of the distribution.

Q: For an educational study, a volunteer must place in the middle 50% on a test. If the mean for the…

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Q: what will be the value of X at the z score =-2.5 given, mean=45 and standard deviation =5?

A: Mean = 45 Standard deviation = 5  Z score =-2.5 We have to find X score  for given data...

Q: A random sample of 90 American female soccer players found that 14 play professionally abroad. Build…

A: Given that  A Random sample size (n) = 90 Players play professionally abroad (x) = 14  Confidence…

Q: Find the​ z-score that has 93.82​% of the​ distribution's area to its left.

A: given probability is P(Z<z0)=0.9382

Q: A normal distribution has a mean of µ = 200 with σ = 20. If a vertical line is drawn through the…

A: Let X be a random variable such that X~N200,202

Q: Assume that z scores are normally distributed with a mean 0 and a standard deviation of 1. If Pl - b…

A: # z be the standard normal variates with mean 0 and standard deviations 1  To find value of b such…

Q: A certain tennis player makes a successful serve 80% of the time. Suppose the tennis player serves…

A: Given : A certain tennis player makes a successful serve 80% of the time. assume that tennis player…

Q: Use the z table to find the value k so that 40% of the scores are greater than k.

A: Normal distribution is widely used in statistics . It is very useful in modern times .

Q: In order to apply the Central Limit Theorem, you need to focus on the: Select one: O a. the outcomes…

A: Hey, since there are multiple questions posted, we will answer the first question. If you want any…

Q: Investigate and explain about t- distribution and then provide 2 examples and solve it by using the…

A: A probability distribution for a particular random variable is function of values that maps the…

Q: Let X a b(4,) find Var(3x) and distribution function.

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Q: (d) ABC is unable to adjust the mean of the filling process. However, it is able to adjust the…

A: We have given that.   X~N( μ , ?^2 )   μ=50 , ?=1.25   Z-score =( x - μ )/?

Q: What happens to the interval as you increase the confidence of the sampling distribution?

A: As the confidence level increases the width of the confidence interval increases and as the…

Q: The temperature recorded at 60 airports in a region had a mean of 67 degrees Fahrenheit and a…

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Q: The marks of the students in a class are normally distributed with mean 70 and S.D. of 5. If the…

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Q: The estimate of the standard error of the mean is computed as?

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Q: Assume that women's weights are normally distributed with a mean given by mean=143 lb and a standard…

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Q: z-score that is greater

A: we can assume it to be standard normal distribution with mean = 0 standard deviation = 1

Q: The recidivism rate for convicted sex offenders is 8%. A warden suspects that this percent is…

A: Given Information: Hypothesized value of population proportion p0=0.08 Sample size n=321 Out of…

Q: A normal distribution has a mean of µ = 200 with σ = 20. If a vertical line is drawn through the…

A:

Q: Suppose that insurance companies did a survey. They randomly surveyed 450 drivers and found that 310…

A: Number of drivers who claim that they always buckle up, x=310. Number of drivers who were surveyed,…

Q: a) Find the mean of p, where p is the proportion of defective light bulbs in a sample of 4400 when…

A: From the given information we find the solution.

Q: What position [how many standard deviations] in the distribution corresponds to z-score of z= -1.00?

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Q: A local kitchen remodel shop works with the middle 74% of the market. The average cost of a kitchen…

A: Given that mean =22134 s.d = 3189 p value =0.74

Q: In the same class, Idris scored 82% on a test with a z-score of 1.5 while Malik got 54% with a…

A: From the provided information, Idris scored 82% on a test with z score of 1.5 and Malik got 54% with…

Q: Compute the interquartile range for the following scores that represent a continuous variable: 1, 2,…

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Q: The mean weight of 200 students is 50 kg and SD is 4 kg. If weight is normally distributed then find…

A: Solution: Let X be the weight of a student. From the given information, X follows normal…

Q: a sample of n=300 male college freshmen has a mean weight of 160 with a standard devation of 11. how…

A: It is given that the weight of freshmen follows normal distribution with mean of 160 and standard…

Q: When would you use a chi-square analysis A.When the variance between two groups are equal B. When…

A: C. When you only have categorical variables to analyze

Q: The control department of a light bulb manufacturer randomly picks 4400 light bulbs from the…

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Q: frontiner commutes daily from his home to work. The average time for a one-way trip is 35 minutes.,…

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Q: The recidivism rate for convicted sex offenders is 11%. A warden suspects that this percent is…

A:

Q: After 3 points have been added to every score in a sample, the mean is found to be M= 83 and the…

A: After 3 points have been added to every score in a sample, the mean is found to be M= 83. The value…

Q: The time (in minutes) it takes Greg to complete a homework problem is uniformly distributed…

A: X=Time it takes to complete a homework problem X~Ua,bwhere, a=15 and b=28hence, X~U15,28

Q: The mean score on a driving exam for a group of​ driver's education students is 60 ​points, with a…

A: Given Themean score on a driving exam for a group of driver's education  students is X = 60.  The…

Q: After 5 points are added to every score in a distribution, the mean is calculated and found to be u…

A: After 5 points are added to every score in a distribution, the mean is calculated and found to be µ…

Q: The control department of a light bulb manufacturer randomly picks 4400 light bulbs from the…

A: Given that  p =0.01 , n =4400

Q: The control department of a light bulb manufacturer randomly picks 4400 light bulbs from the…

A: Introduction - If p^ is normally distributed  mean of p^=p Standard deviation of p^=pqn where ,…

Q: Assume a distribution with mean of 50 and a standard devivation of 12.  For an x-value of 65, the…

A: Given information- Population mean, µ = 50 Population standard deviation, σ = 12

Q: A z-score less than O represent an element above than the mean.

A: We know that Z or standard normal distribution has a mean 0 and it is symmetric about 0 and we also…

Q: .The mean and variance of a binomial distribution are 8 and 4 respectively. Find the value of n

A: The probability of success or failure of an event which occur n times is calculated using the…