find the standard deviation

Q: The average birth weight of elephants is 220 pounds. Assume that the distribution of birth weights…

A: Solution-: Given: μ=220,σ=50 We want to find the birth weight of elephants at the 90th percentile.

Q: A person in the U.S. eats about 25 pounds of M&M's per year with a standard deviation of 3 pounds.…

A: Given information Mean µ = 25 pounds Standard deviation σ = 3 pounds Z = -2

Q: Use the probability distribution to complete parts (a) and (b) below. The number of defects per 1000…

A:

Q: Male and female populations of tortoises under 80 years old are represented by age in the table…

A: Here the given table is : Age males females…

Q: Stock analysis. The price-eaming ratios of 100 randomly selected stocks from the New York Stock…

A: Statistics is the branch of mathematics which are dealing the presentation of data, interpretation…

Q: Determine the variability of your data set (standard deviation), and the uncertainty of the mean.

A: In variable data set the single data value has an uncertainty that is equal to the standard…

Q: Rude Drivers: Tailgating Do you tailgate the car in front of you? About 35% of all drivers will…

A: (c) The random variable r follows binomial distribution with parameters n=12 and p=0.35.

Q: A golf club manufacturer claims that golfers can lower their scores by using the manufacturer's…

A: The following information has been provided: Score (old design) Score (new design) Difference =…

Q: The average monthly income for employees at a local company is 2413 with a standard deviation of…

A: Mean()=2413standard deviation()=450Employee  makes 1917 per month

Q: need standard deviation p

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Q: You are performing a study about weekly per capita milk consumption. A previous study found weekly…

A: Formula : Standard deviation:

Q: The scores on a mathematics exam have a mean of 71and a standard deviation of 8. Find the x-value…

A: Let X denote the scores on a mathematics exam and it follows normal distribution with mean of…

Q: dard deviation for age. Age Number (millions) 25-34 35-44 45-54 55-64 29.4 34.8 36.1 20.4

A: Given The following data represent the number of people aged 25 to 64 years covered by health…

Q: Recently, a random sample of 25–34 year olds was asked, "How much do you currently have in savings,…

A: From the different savings class we need to find first the class mid point(xi) . And the frequency…

Q: Fabienne found the standard deviation of the residuals to be 1.30. Explain this value in context.

A: The standard deviation of the residuals shows that how much the data points spread around the…

Q: The mean grade on a statistics exam is/M=82, the standard deviation is=12. What actual grade has a…

A: The normal distribution  in the center are generally denser and basically less denser at tails.…

Q: Find the mean and standard deviation for each uniform continuous model- deviation" answers to 4…

A: From the given information, Consider, X and Y are the two random variables that follows uniform…

Q: Using your calculator, find the range and standard deviation, round to The table below gives the…

A: We know that Range : It the difference between the maximum value of the data set to the minimum…

Q: JEFFERSON'S METHOD Problem Set: Region A B C D Population 56,051 84,076 112,101 168,152 140,127 25%…

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Q: High school students across the nation compete in a financial capability challenge each year by…

A: Z= x-μσ~N(0,1)

Q: Find the standard deviation if the mean = 2, mode = 5, variance = 56 . Round your answer to three…

A: We have given that,  Mean (x̄) = 2 , mode (z) = 5 and variance        (s^2) = 56 Then,  We will find…

Q: Compute the mean and standard deviation for the sample below, rounding each to the nearest…

A: Measure of central tendency measures the central or average value of a dataset. Measured of…

Q: Question B A sample of size n 10 is drawn from a population. The data is shown belo 84.9 114.6 98.2…

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Q: In a population of exam scores, a score of X = 88 corresponds to z = 2 and a score of X = 79…

A: From the provided information, A score of X = 88 corresponds to z = 2 A score of X = 79 corresponds…

Q: Question 1 The probability that a tutor will see 0, 1, 2, 3, or 4 students 0 | 1 2 3| 4 1 5 4 P(x)…

A: For x=3, P(X)=1-427+127+59+527                          =227

Q: 三 E Homework: 11.3 Measure of Dispersion 8, 10.3.26-LS Part 1 of 2 Nutrition: animals. The mouse…

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Q: Listed below are foot lengths in inches for 11 randomly selected people taken in 1988. Find the…

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Q: The grades on a geometry midterm at Oak have a mean of u = 74 and a standard deviation of o = 4.0.…

A: Given  mean (μ)=74 and x =70 standard deviation (σ)=4.0 Find the z-score ?

Q: A manufacturer claims that the mean weight of its ice cream cartons is 10 ounces with a standard…

A: The random variable is weight of ice cream cartons. The population mean is 10 ounces. The population…

Q: Refer to the accompanying table, which describes the number of adults in groups of five who reported…

A: Given, The probability distribution of the number of adults in a group of 5 who reported…

Q: Find the mean and standard deviation for each binomial random variable: a. n= 58, = .60 (Round your…

A: Standard deviation can be calculated as square root of variance  I.e Standard Deviation = SQRT(n * P…

Q: 30 10 (b) Find the equation of the line containing the points (4,11) and (9,26). y=x+( (Type…

A: It is given that the data of two random variables x and y.

Q: 37 38 37 30 36 47 40 47 27 36 30 26 41 41 51 44 31 40 38 44 39 53 37 42 45 44 44 41 46 37 Do the…

A: We have given the data set of sample size 30. We have to calculate sample standard deviations. (b)…

Q: how do i find the standard deviation of this question?

A: Given data: 227 , 123. 102, 235, 250, 202, 243, 111 Range = Maximum value - Minimum value…

Q: Consider the following data set. Round your answers to the nearest hundredth as needed. 56 34 44 56…

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Q: he scores of adults on an IQ test are approximately Normal with mean 100 and standard deviation 15.…

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Q: The human population has a mean IQ score of µ = 100 and a standard deviation of σ = 15. Find the…

A: The normal distribution is the most useful theoretical distribution for continuous variables.…

Q: The frequency distribution was obtained using a class width of 0.5 for data on cigarette tax rates.…

A: where,  f is frequency of class x is midpoint Midpoint = x = Lower limit of class + upper limit of…

Q: In a population distribution, a score of X= 57 corresponds to z= -0.25 and a score of X= 87…

A: From the given information, The distance between 57 and 87 is 30 units. (=87–57) The distance…

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: ind standard deviatio

A: Provided data is, High school students across the nation compete in a financial capability challenge…

Q: The number of defects per 1000 machine parts inspected Defects 1 2 4 5 Probability 0.262 0.295 0.236…

A:

Q: The following is a probability distribution for a discrete random variable X. P (x) 0.4 0.6 The…

A: From the provided information, x 0 1 P(x) 0.4 0.6

Q: The estimated standard deviation is (Round to three decimal places as needed.) Is this an acceptable…

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