A binomial distribution happens such that q=4C2/100 and n=6C1.Find the square root of std deviation.

Q: Assume that adults have IQ scores that are normally distributed with a mean of 105 and a standard…

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Q: The average daily sales(X) of a branch are $500 and standard deviation is $51. Assuming the…

A: Answer: From the given data, The daily sales (X) are normally distributed with mean (μ) = $ 500…

Q: The mean number of customers arriving at a restaurant during a 15-minute period is 13. Find the…

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Q: What is the standard deviation for a binomial distribution with p = 0.6 and n = 42? Report your…

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Q: According to a recent survey, Americans were expected to spend an average of 985.50 hours watching…

A: Given information is : According to a recent survey, Americans were expected to spend an average of…

Q: Describe about the mean absolute deviation.

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Q: A race director is preparing for an upcoming marathon and estimates that the mean time to finish is…

A: Given information- Population mean, µ = 312 minutes Population standard deviation, σ = 70 minutes We…

Q: Assume that readings on thermometers are normally distributed with a mean of 0 and a standard…

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Q: Scores on a test have a mean of 86 and a standard deviation of 13. Jerrica has a score of 94.…

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Q: Assume that adults have IQ scores that are normally distributed with a mean of 97.8 and a standard…

A: Given a mean of 97.8 and a standard deviation of 23

Q: A set of exam scores are reported as X values and z-scores. On this exam a score of X = 72…

A: X = 72 corresponds to a z-score = +1.00 and a score of X = 52 corresponds to a z-score = -1.00.  We…

Q: brisk walk at 4 miles per hour, burns an average of 300 calories per hour. If the standard deviation…

A: Given Data Population Mean,μ = 300.0 Population Standard Deviation,σ = 8.0

Q: Working in the garden pulling weeds/planting flowers burns an average of 200 calories per hour. If…

A: It is given that  Mean, μ = 200 Standard deviation, σ = 9 Z-Score, Z = ( X - μ )/σ

Q: Assume that adults have IQ scores that are normally distributed with a mean of h=100 and standard…

A: Let "X" be the IQ score of the adults.

Q: A normal distribution has a mean of 20 and a standard deviation of 10. Two scores are sampled…

A: The provided information is:

Q: A simple random sample of 100 observations was taken from a large population. The sample mean and…

A: Given that ,                    sample size n=100                    Mean u=80…

Q: What is the standard deviation for a binomial distribution with p = 0.4 and n = 77?  Report your…

A: Given,p=0.4n=77A random variable X~Binomial(n=77 , p=0.4)P(X=x)=77x0.4x1-0.477-x  ;   x=0,1,2,...77

Q: The average daily sales(X) of a branch are $500 and standard deviation is $51. Assuming the…

A: It is given that  Mean, μ = 500 Standard deviation, σ = 51

Q: Assume that blood pressure readings are normally distributed with a mean of 135 and a standard…

A: According to the given information, we have Mean = 135 Standard deviation = 4.7 Sample size = 35

Q: During the first day of classes for the second semester, the Statistics and Probability teacher of…

A: Answer : - Given data  sample size n = 100                  Sample mean x  = 80.68,   Population…

Q: Assume that blood pressure readings are normally distributed with a mean of 123 and a standard…

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Q: At a large manufacturing company the mean age of workers is 37 years, and the standard deviation is…

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Q: Write down the formulas for the standard deviation of x.

A: The formula for the sample standard deviation can be written as: Here, n is the sample size and x̅…

Q: Find the mean and variance for the binomial distribution, n=18 , P= 0.68 Round to two decimals

A: Answer: From the given data, sample size(n) = 18 p = 0.68

Q: The average number of pounds of red meat a person consumes each year is 196 with a standard…

A: Given data normally distributed with mean of 196 pounds and standard deviation of 22…

Q: Assume that blood pressure readings are normally distributed with a mean of 115 and a standard…

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Q: The average yearly Medicare Hospital Insurance benefit per person was  $4064 in a recent year.…

A: Given Information: Mean, μ=$4064Standard Deviation, σ=$460Sample Size, n=22

Q: On a test that has a normal distribution, a score of 60 falls one standard deviation above the mean,…

A: Given that the test score has Normally distributed.  A score of 60 falls one standard deviation…

Q: The amount of time people spend at the gym follows a uniform distribution from 45 to 90 minutes.…

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Q: Assume that the readings on the thermometers are normally distributed with a mean of 0°C and a…

A: Given Data Population Mean,μ = 0 Population Standard Deviation,σ = 1

Q: Find the standard deviation for n = 300 and p = 0.3 when the conditions for the binomial…

A: According to the provided information, n = 300 p = 0.3

Q: A normal distribution has a mean of u=54 and a standard deviation of o=6, what is the probability of…

A: Let "X" be the raw score.

Q: Scores on the SAT test have a mean of 1518 and a standard deviation of 325. If 100 students are…

A: Scores on the SAT test have a mean of 1518 and a standard deviation of 325.

Q: The scores on a test are normally distributed with a mean of 150 and a standard deviation of 30.…

A: The normal distribution:A continuous random variable X is said to follow normal distribution if the…

Q: The weight of a type of dog follows Normal distribution with mean of 10 pounds and standard…

A: It is given that the weight of dog is normally distributed with mean 10 pounds and standard…

Q: The time until failure of an electronic component has an exponential distribution and it is known…

A: Exponential distribution: A continuous random variable X is said to follow exponential distribution…