The amount of caffeine in a sample of five-ounce servings of brewed coffee is shown in the histogram. Make a frequency distribution for the data. Then use the table to estimate the sample mean and the sample standard deviation of the data set. W Click the icon to view the histogram.

Q: In a memory test, the test subjects are shown 625 objects and are asked after two hours to name the…

A: Given,          sample size n=625           sample proportion P∧=80%=0.80       A)    Mean=P∧…

Q: A population has mean 49 and standard deviation 5. What is the data value that has a z-score of 2?…

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Q: The variance and mean for a given set of data is 25 and 64 respectively. Calculate the standard…

A: We have given that,  Variance (s^2) = 25 Mean (x-bar) = 64 Then, We will find the standard…

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

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Q: Yearling Angus steers had a mean weight of 1152 pounds with a standard deviation of 84 pounds.…

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Q: The amount of money seven people spent on prescription medication in a year are as follows: $600…

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Q: Find the range and standard deviation of the following set of data. The range is 196, 188, 191, 202,…

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Q: In an examination, the mean grade is 81 and the standard deviation is 6. Find the Z-score of the…

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Q: A manufacturing company that produces light bulb found out that the mean life span of the bulb is…

A: Answer: Option a. 99.91%.   Explanation: A manufacturing company that produces light bulb found that…

Q: Find (a) the range and (b) the standard deviation for the sample

A: We have given that the data in tabulation form.   Range: The difference between the maximum value to…

Q: Gabriel and Lucia took a road trip across the country. The room costs, in dollars, for their…

A: Here AS PER GUIDELINES I have calculated first main question  Here calculated mean and standard…

Q: Use a calculator or software to find the (a) Find the mean and standard devia MEAN: STANDARD…

A: mean of x = ∑xn = 296= 4.888 standard deviation = ∑(xi- x)2n-1 = 26.8335 = 2.316

Q: Using PivotTables, find the mean and standard deviation of sales by region in the data provided.…

A: A pivot table is one of the important tools in the MS-Excel software that is used to summarize the…

Q: The cheetah is the fastest land mammal and is highly specialized to run down prey. The cheetah often…

A: a. Consider a random variable x defines the speed of cheetah.

Q: The table on the right gives the annual income for eight families, in thousands of dollars. Find the…

A: Given that following data Family Income x A 49 B 51 C 46 D 48 E 47 F 48 G 45 H 50…

Q: What is the mode of the data?  d. What is the standard deviation of the data?

A: Given Frequency table, Class Interval Frequency Relative Frequency 1 to 5 3 3 6 to 10 4 7…

Q: Steven ran the 100 meter dash in 13 seconds.  What is his T-score if the class mean was 14 seconds…

A: t statistic

Q: A z-score tells us how many standard deviations a score is from the mean. What is another word for…

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

Q: Find (a) the range and (b) the standard deviation of the set of data. 62, 47, 41, 56, 47, 44, 53

A: We'll answer the first question since the exact one wasn't specified. Please submit a new question…

Q: Q) Estimate Median, Mean and standard deviation

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Q: In an Algebra class, the scores on a test are normally distributed. The middle 68% of the scores…

A: Given that,The middle 68% of the scores fall between 77 and 93.

Q: Given a set of scores below, write down the scores one, two, and three standard deviations above the…

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Q: Find both the mean and standard deviation for the data table provided below 33 Click the icon to…

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Q: In an Algebra class, the scores on a test are normally distributed. The middle 68% of the scores…

A: Given information middle 68% of the scores fall between 76 and 88 As per empirical Rule 68% falls…

Q: n the distribution shown, state the mean and standard deviation. Hint: The vertical lines are 1…

A: The vertical line in the distribution shows the 1 standard deviation apart.

Q: Which would you expect to be the larger standard deviation: a. The standard deviation of the weights…

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Q: Place the following in order to show how you find the standard deviation. Take the square root of…

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Q: Use the range rule of thumb to identify the values that are significantly low, the values that are…

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Q: Grace has a dog and its weight is z = -0.5lbs.  Her current weight is 47 lbs.  The average weight…

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Q: figure the standard deviation of the distribution of means for a population with a standard…

A: Population standard deviation is given and sample standard deviations have to be calculated for…

Q: The heights of 1,000 college students are normally distributed about a mean value of 170…

A: Given, N=1000 μ=170 σ=7.2 Normal distribution: Z=x-μσ

Q: Find the scores one, two, and three standard deviations above and below the mean, given the…

A: Given that  μ = 86.1 , σ = 12.5   Find the score

Q: Create a table and determine the mean, variance and standard deviation of the scores 1O, 11, 12, 13,…

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Q: The mean temperature in Amman for the month of October is 23 degrees with a standard deviation of…

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Q: Find the indicated IQ score. The graph to the right depicts IQ scores of adults doors, and those…

A: Here we need to find the indicated iq score.

Q: Use the display of data to find the standard deviation (do not round until the final answer, then…

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Q: Determine the class average if the standard deviation was 8% and Henry’s mark of 85% is equivalent…

A: Given that,  The standard deviation =8%, Marks of Henry's =85%, and z-score =1.30.

Q: The heights of Crepe Myrtle saplings at a local nursery are measured and the data recorded. The data…

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Q: Fill in the following values in the table using the rounded mean you got in the question above.…

A: From the given information, x 57 61 57 57 58 57 X¯=57.8333 Consider, x…

Q: The cheetah is the fastest land mammal and is highly specialized to run down prey. The cheetah often…

A: Empirical rule : μ±σ = 68% μ±2σ = 95% μ±3σ = 99.7%

Q: Find the indicated IQ score.

A: Let X denote the IQ scores of adults. Given that X follows N(mean = 100, SD = 15)

Q: The state and will spend 15 hours average a week and class and the standard deviation is 2 hours…

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Q: Recently, a random sample of 13–18 year olds was asked, "How much do you currently have in savings?"…

A: Given, Savings  Frequency 0-199 347 200-399 98 400-599 62 600-799 20 800-999 12…

Q: 0.75

A: Given X is normal Distributed with mean µ = 100.0 and standard deviation σ = 15.0 now will use…

Q: List the standard deviations in ascending order.In which measurement is the standard deviation…

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Q: On a standardized test, Sara had a score of 93, which was exactly 2 standard deviations above the…

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

Q: In an Algebra class, the scores on a test are normally distributed. The middle 68% of the scores…

A: The random variable score X is normally distributed and middle 68% of values fall between 71 and 83…

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: Use Z-scores to determine which is a better relative golf score (remember that in golf, lower scores…

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Q: In an Algebra class, the scores on a test are normally distributed. The middle 68% of the scores…

A: Given : The middle 68% of the scores fall between 71 and 79 P(71<X<79)=68%