The average temperature in a town in January is 22.1 oF and the standard deviation is 7.5 pF. What is the average temperature in Celsius?
Q: a manufacturer claims that the mean lifetime of its fluorescent bulbs is 1050 hours. a homeowner…
A: Given n=40 Standard deviation =80 Xbar=1030 Level of significance=0.05 Mu0=1050
Q: At the shot put event the mean was a throw of 44.22 feet, with a standard deviation of 3.65 feet.…
A:
Q: the average height of grade 10 students is 148 cm. a sample of 250 students had an average heigh of…
A: Given: μ=148Sample size, n=250sample mean, x¯=148.3sample sd, s=8
Q: On a math exam, Joel had a score o 90, which was exactly 2 standard deviations above the mean. The…
A: Since, we only do up to three sub parts of a problem, we'll be doing the first three sub parts only.…
Q: The reading speed of sixth-grade students is approximately normal, with a mean speed of 125 words…
A: Mean = 125 Standard deviation = 24
Q: In another company, every worker received a 5% raise. How does this affect the mean salary? The…
A: Every worker received a 5%. The mean defines that the center or average of the data and it is…
Q: What is the standard deviation of y?
A:
Q: The heights of men, in centimetres, are normally distributed with a mean of 175 and a standard…
A:
Q: can you find the mean and standard deviation?
A: Let the male data set is denoted by x, then the mean is given by the formula x¯=∑xxn. Where, the…
Q: For a sample of 18 cars, you find the standard deviation of the price is 6150 (measured in dollars).…
A: Given that, Sample size of cars n=18 Standard deviation of the price s=6150
Q: find the standard deviation
A: Hey there! Thank you for posting the question. Since there are multiple questions posted, we will…
Q: On a spelling test, the standard deviation is equal to 0.94. What does this mean
A: We know that the Standard deviation tells us that how much data is scattered around the mean value…
Q: The weights of 1,000 children average 50kg and the standard deviation is 5kg. How many children…
A: Given mu=50, sigma=sd=5, n=1000 We want to find How many children weigh between 40kg and 55 kg?
Q: The cruising altitudes for the fleet of one commercial airliner are normally distributed with a mean…
A: It is given that the mean is 34,950 and the standard deviation is 1,800.
Q: What is another name for the standard deviation of the variable x? What is the reason for that name?
A:
Q: What is the corresponding Z score ? Mean is 70, standard deviation is 10 and X= 89
A: We have to find z score.
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: The length of time it takes a Grade 11 student to play the Candy Crush computer app follows a normal…
A: Given that The length of time it takes a grade 11student to play the candy crush computer is…
Q: ) Approximate the mean and standard deviation for temperature.
A: (a) The mean for temperatures is, Temperature Days(f) Midpoint(x) fx 50 - 59 4 54.5 218 60 -…
Q: The diameters of watermelons at a local supermarket are normally distributed with a mean of 10…
A: Let X denote diameters of watermelons at a local supermarket. Given that X follows Normal(mean = 10,…
Q: In a particular examination, the mean score is 82 and the standard deviation is 3.7. Wha is the Z-…
A: Given that the mean is 82 and standard deviation is 3.7. That is, μ=82σ=3.7
Q: In one town, the number of pounds of sugar consumed per person per year has a mean of 6 pounds and a…
A: In one town, the number of pounds of sugar consumed per person per year has a mean of 6 pounds and a…
Q: For a sample of 18 cars, you find the standard deviation of the price is 6150. What is the standard…
A: Given: Sample size=n=18,Standard deviation=σ=6150.
Q: Given that the mean score is 83 and the standard deviation is 6. What z-score corresponds to the…
A:
Q: The annual commissions per salesperson employed by a retailer of mobile communication devices…
A: Obtain the Z-score for the random variable $32000. The Z-score for the random variable $32000 is…
Q: An e-reader has a one year warranty. The mean lifespan of the e-reader is 2.5 years, with a standard…
A: From the given information, the mean lifespan of the e-reader is 2.5 years and the standard…
Q: The mean test score for a history test is 63 with a standard deviation of 9. The mean test score for…
A: It is given that the mean test score and standard deviation for history test are 63 and 9, the mean…
Q: A department store has daily mean sales of $ 28,372.72. The standard deviation of sales is $2000. On…
A: Given information- Mean sales, μ = $ 28,372.72 Population standard deviation, σ = $2000 Tuesday’s…
Q: The mean height of trees in the virgin forest of Zambales is 42 feet and the standard deviation is 3…
A: The mean height of trees in the virgin forest of Zambales is 42 feet and the standard deviation is 3…
Q: The mean temperature in Islamabad in the month of January is 16▫c with a standard deviation of…
A:
Q: the average height on the soccer team is 66 inches with a standard deviation of 3. a z score of -1.6…
A: Introduction: Consider X as a normally distributed random variable, with mean μ and standard…
Q: Many students did an exam, the mean was 15 and the standard deviation was 32 The highest mark was…
A: Given Mean μ=15, standard deviation σ=32 X=103
Q: Professor Ivy’s students have a Mean grade of 69.5 and a Standard Deviation of 6.5. If Johnny has…
A: From the provided information, Mean (µ) = 69.5 Standard deviation (σ) = 6.5 Let X be a random…
Q: What is the difference between the standard deviation and CV? When it is appropriate to use each…
A: Standard deviation: It is square root of variance. It is obtained by taking square root of sum of…
Q: f the class average is 84
A: Here it is given that - Mean (μ) = 84 Standard Deviation (σ) = 5 Let, X be a random variable which…
Q: A given set of data has a specific standard deviation. Describe what will happen to the standard…
A: Answer: The standard deviation of new data is remains same as original data. As a general rule, the…
Q: What is the standard deviation?
A: We have to calculate the SD for the given frequency distribution.
Q: A small grocery store, on average, has daily sales of Php28, 176.44. The standard deviation of sales…
A: Solution: Let X be the daily sales. From the given information, µ = Php 28,176.44 and σ = Php 1500.
Q: The heights of people are normally distributed with a mean of 86 inches and a standard deviation of…
A: X follows a Normal distribution with mean = 86 and S.D = 5 Then z=(x-mean)/SD = (x-86)/5 follows…
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: Solution: Given μ= 25 Pounds Population meanσ= 3 Pounds Population standard deviations Assumed…
Q: What is the weight of the newborn elephant at the 33rd percentile? Round to the nearest whole number
A: Given: birth weights of newborn elephants = X X is Normally distributed mean of X = 160 pounds…
Q: On the final exam, your friend scored a 93 and you scored a 85. The scores are normally distributed…
A: Obtain the Z-score for the random variable X equals 85. The Z-score for the random variable X equals…
Q: The number of miles driven on each of five tires was 17,000, 18,000, 18,000, 21,000, and 21,000.…
A: The given data is xi=17000, 18000, 18000, 21000, 21000. The number of observations is n=5.
Q: Brian scored an 80% on a Chemistry Exam. The average on the exam was a 68%, with a standard…
A:
Q: Write down the formulas for the standard deviation of p.
A: Let sample size = n Sample proportion = p̄
Q: The reading speed of sixth grade students is approximately normal with a mean speed of 115 word per…
A: Consider that the mean and standard deviation of a random variable X are µ and σ, respectively.…
Q: A mean of 200 and a standard deviation of 50. Find P60, the score which separates the lower 60% form…
A:
Q: The daily water usage per person in Davao City is normally distributed with a mean of 20 gallons and…
A: Given that, Mean = 20 Standard deviation = 5
Q: On a standardized test, Jose scored an 87 and Mia scored a 74. The distribution of test scores for…
A:
Q: What is the Standard Deviation?
A: You want to know about standard deviation.We will deeply understand the meaning of standard…
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