Find the Inter Quartile Range (IQR) for time spent at the hot springs. Q1:  minutes Q3:  minutes IQR:  minutes

Q: After entering the test scores from her Statistics class of 25 students, the instructor calculated…

A: IQR is obtained as the difference between the third and first quartiles.

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: e last answ

A: According to the sum, A sample of 13 small bags of the same brand of candles was selected. It is…

Q: Activity 2 of 3 What percent of Braves players fall between 230 and 270? O A. 95.4% O B. 47.7% O C.…

A: Answer Option c = 68.2% is correct

Q: Round each z-score to the nearest hundredth. A data set has a mean of x = 79 and a standard…

A:

Q: Assume that the results are normally distributed. Pedro took an exam in a class in which the mean…

A: The formula for z-score is z = x - μσ where μ is the mean and σ is the standard deviation.…

Q: Round each z-score to the nearest hundredth. A data set has a mean of x = 218 and a standard…

A: Given , x = 218    , σ = 40 We know , z-score = x-xσ

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

A:

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

A: Solution: Let X be the adults IQ score has normally distributed with mean μ=100 and standard…

Q: Find the area of the shaded region. The graph to the right depicts IQ scores of adults in those…

A:

Q: A standardized exam's scores are normally distributed. In a recent year, the mean test score was…

A: Unusual value: The Z-value is said to be Unusual if the Z is greater than 2 or less than –2. From…

Q: From 1776-1800, the average age of first marriage for a male in Western Europe was 26.4 years, with…

A: The question is about normal distributionGiven :Average age of first marriage for males ( ) = 26.4…

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

A:

Q: The weights of men in their 30s are normally distributed with a mean of 190 pounds and a standard…

A: From the provided information, Population mean (µ) = 190 pounds Population standard deviation (σ) =…

Q: Find the Z-Score for a IQ  test score of 142 when the mean is 100 and the standard deviation is 15.

A: It is given that the mean and standard deviation are 100 and 15, respectively. The IQ test score is…

Q: 1) Z-SCORE. Which has a better relative position: a score of 75 on a statistics test with a mean of…

A: HI, we are supposed to answer one question at a time. Since you have not mentioned which question to…

Q: How to find the standard deviation

A: Mean:Mean is a measure of center in case of quantitative data. Mean of a data set is the sum of the…

Q: Scores on a test are normally distributed with a mean of 123 and a standard deviation of 20. What…

A:

Q: The average IQ in Sarah’s class is 105 with a standard deviation of 15. What is the z score of Sarah…

A:

Q: how did you find the standard deviation to be 1.2. explain clearly?

A: Here we have to explain the how we get standard deviation is 1.2

Q: Katherine earned a score of 1000 on Exam A that had a mean of 700 and a standard deviation of 100.…

A: Here we need to find the score for Katherine in exam B such that it's equivalent to the score for…

Q: (a) Find the 45h percentile of the lengths. th (b) Find the 76 percentile of the lengths.

A: (a) The 45th percentile of the lengths is, PX<x=0.45PX-μσ<x-47840=0.45Pz<x-47840=0.45 The…

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: the data set has a size 50, how many observations lie within 2 standard deviations of the mean

A: From the provided information, Sample size (n) = 50 The observations lie within 2 standard…

Q: the average grade is 84 with a standard deviation of 4. What is each grade for -1 2 0 1.5 -1.25

A: Given Mean μ=84Standard deviation σ=4 The formula for Z score isZ=X-μσX=Z×σ+μ

Q: O E atistic is | (Round to two decimal places as needed.)

A: For medium lead level: sample size (n1) = 11 sample mean (x̄1) = Σx1 /n1 =999/11 = 90.82 sample…

Q: The Atlanta Braves baseball team has a mean batting average of 250 with a standard deviation of 20.…

A: We have to find given probability.

Q: The lives (in hours of continuous use) of 100 randomly selected flashlight batteries are: Interval…

A: According to the given data, first form the following table:IntervalFrequency(fi)Midpoint(xi…

Q: What is F, the daily average temperature in degrees Fahrenheit in Raleigh during this period? b)…

A:

Q: Energy consumption for single family comes is a mean of 1050kw and standard deviation of 218kw. Find…

A: Given information- Population mean, μ = 1050 kw Population standard deviation, σ = 218 kw We have to…

Q: Mountain Mouse makes freeze-dried meals for hikers. One of Mountain Mouse's biggest customers is a…

A: From the above given data the following solution is provided below:

Q: When tossing two dice and finding the mean, X we find that has a mean or expected value, and a…

A: Here, it is known that the mean is 3.5 and a population standard deviation of 1.7078. The sample…

Q: A review of all records in a large vetinary clinic show that indoor domestic cats at the clinic have…

A: Mean () =15standard deviation () =4sample size (n)= 37

Q: The mean height of a sample of 25 trees of a particular species is 20 feet. The standard deviation…

A: mean = 20 standard deviation = 3 Sample size= 3