A set of average city temperatures in April are normally distributed with a mean of 19.7°C and a standard deviation of 2°C. The average temperature of Kabul is 15°C. What proportion of average city temperatures are lower than that of Kabul? You may round your answer to four decimal places.

Q: Use the body temperatures, in degrees Fahrenheit, listed in the accompanying table. The range of the…

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Q: Calculate the sample standard deviation for this data set: 88, 73, 91.

A: From the provided information, 88, 73, 91 The sample mean of the data can be obtained as:

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Q: ss, the scores on a test are normally distributed. The middle 68% of the scores fall between 74 and…

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Q: The rainfall in a town last year measured 31 inches. If the annual rainfall has a mean of 48.89…

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Q: The mean score on the ACT test was 23.7 and the standard deviation was 5.8. The distributions of…

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

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

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Q: The velocity of an object can be modeled by an approximately normal distribution with a mean of 70…

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Q: Print Refrigerator manufacturers design their freezer units to maintain temperatures within a…

A: a.   Consider that σ2 is the true variance of temperatures of refrigerator.

Q: In which month is it more unusual to have a day with a high temperature of 57°​? Explain

A: For January, mean = 36 and SD = 9 Fir July, mean = 77 and SD = 8 First we calucuate the z scores of…

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A: The z score formula is,

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

A: It is given that readings on the thermometers is normally distributed with mean 0 and a standard…

Q: The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 117…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

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Q: art professor gives an A to any student in the top 9% of the distribution. The grades are normally…

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A: Given: mean = 84.

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

A: Given,mean(μ)=100standard deviation(σ)=15

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Q: Juan makes a measurement in a chemistry laboratory and records the result in his lab report. The…

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Q: The annual rainfall in a town has a mean of 54.57 inches and a standard deviation of 12.84 inches.…

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