Heart Rates For a certain group of individuals, the average heart rate is 74 beats per minute. Assume the variable is normally distributed and the standard deviation is 4 beats per minute. If a subject is selected at random, find the probability that the person has the following heart rate. Round the final answers to at least four decimal places and intermediate z-value calculations to two decimal places. Part: 0/3 Part 1 of 3 (a) Between 69 and 77 beats per minute P(69

Q: 3 Calculate the Standand deviationA 25 vand to hundredths. 16/719

A: Concept : The standard deviation of a data is σ = 1N∑i=1i=Nxi-μ2    where xi is given data and N is…

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A: here given , Assume that thermometer readings are normally distributed with a mean of 0°C and a…

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A: given data normal distributionμ = 105σ = 15p(X<129) = ?

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A: Given: μ=3.5σ=1.7078

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A: We have to find probability..

Q: Assume that thermometer readings are normally distributed with a mean of 0°C and a standard…

A: Suppose the random variable z defines the thermometer reading.

Q: Assume that adults have IQ scores that are normally distributed with a mean of u= 105 and a standard…

A: Solution

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A: To fill the missing  values.

Q: Assume that adults have IQ scores that are normally distributed with a mean of μ=105 and a standard…

A: Let "X" be the IQ score of the adults.

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: d. The probability that a newborn fawn will be weigh between 2 and 3.1 is P(2 <x < 3.1) -

A:

Q: Determine a z-score to the nearest 0.01 for each of the test scores. Which is the better score? Rour…

A: Given data,For TEST A:Mean=670sd=80Test score=950For TEST B:Mean=2.7sd=0.4Test score=4.6

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A: Given information Mean = 100 Standard deviation = 15 P(X &gt; x) = 0.65 P(X &lt; x) = 1 – 0.65 =…

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A: Find the probabilityP(-1.66&lt; Z &lt;-0.66)=?

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A: Given that, The readings at freezing on a batch of thermometers are normally distributed with a mean…

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A:

Q: Assume that thermometer readings are normally distributed with a mean of 0°C and a standard…

A: Assume that thermometer readings are normally distributed with a mean of 0°C and a standard…

Q: Assume that thermometer readings are normally distributed with a mean of 0°C and a standard…

A: Given thermometer readings are normally distributed with a mean of 0°C and a standard deviation of…

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Q: Age of Senators The average age of senators in the108th Congress was 59  years. If the standard…

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A: The given data is as follows:15, 22, 32, 10, 35, 36

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Q: Assume that thermometer readings are normally distributed with a mean of 0°C and a standard…

A:

Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…

A: Given that μ=0σ=1.00