68% of statistics 95% of statistics 99.7% of statistics 4 Mean ▲ Mean 3 st dev 1 st. 1 st. 2 st. dev below 2 st dev above 3 st. dev below above dev dev below above The number of potholes in any given 1-mile stretch of freeway pavement in Pennsylvania has a Normal distribution. This distribution has a mean of 63 potholes, and a standard deviation of 7 potholes. Using the Empirical Rule, what is the approximate percentage of 1-mile long roadways with potholes numbering between 56 potholes and 70 potholes? % 4 Mean

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A:

Q: sume that a normal distribution of data has a mean of 24and a standard deviation of 6. Use the…

A: Given that  The data is normally distributed with Mean (μ) = 24 Standard deviation (σ) = 6  We know…

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A:

Q: Blood sugars from eight patients in a rural clinic were recorded last summer by the local physician.…

A: Given blood sugar results are120,145,200,250,79,100,894,255sample size(n)=8

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A: Solution: The standard deviation explains the dispersion in the data. The population standard…

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A: As per the Bartleby guildlines we have to solve first question and rest can be reposted.... Given…

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A: From the provided information, Population size (N) = 140 Mean (µ) = 44.3 Standard deviation (σ) =…

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A:

Q: distribution,The average sales = 225. Standard  deviation = 40 The  upper limit for  the  middle…

A: According to the empirical rule, for normal distribution, approximately 68% of the observations fall…

Q: Assume that the mathematics scores on the SAT are normally distributed with a mean of 500 and a…

A: The mean is 500 and the standard deviation is 100.

Q: 15

A: Given: μ=1650, σ=320 The corresponding z-values needed to be computed are: The probability of the…

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A: Given Mean=37.5 Standard deviation=7.6

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A: Answer: From the given data, Sample size(n) = 33 mean (X¯) = 26.2 Standard deviation (S) = 5.4 μ =…

Q: Assume that the mathematics scores on the SAT are normally distributed with a mean of 500 and a…

A:

Q: 2. Assume X and Y are independent exponential random variables with rate parameter 1. For the…

A: X and Y denote  independent exponential random variables.The rate parameterThe function:

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A: Mean(μ)=3.1 Standard deviation(σ)=0.5

Q: normal distribution has a mean of 80 and a standard deviation of 14. Determine the value above which…

A: Given that  X~N(μ= 80 , σ= 14 ) μ= 80 , σ= 14 Formula for Z-score Z=(X-μ)/σ

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A: Normal distribution is continuous distribution which has many real life applications. Standard…

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Q: Sche has written a love letter to Letecia and wants to deliver it in a romantic way, such as baking…

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A:

Q: Based on data from a​ college, scores on a certain test are normally distributed with a mean of 1531…

A: mean = 1531  a standard deviation = 324

Q: Assume that the mathematics scores on the SAT are normally distributed with a mean of 500 and a…

A: normal distributionμ = 500σ = 100P(570<x<640) = ?

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Q: Assume the birth weights at a local hospital have a normal distribution with a mean of 110 oz and a…

A: Given that,  μ=110,σ=15 (a) The percentile rank is equal to 100×P(X<140) The value of P(X<140)…

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Q: Search about data on statistics re: study hub business? e.g how many study hub services are there in…

A: Study Hub offers an alternative and affordable place where students can work, read, and study in an…

Q: 1. Assume that the time a student stays in school is normally distributed with a mean of 5 hours and…

A: Mean(μ)=5 hoursStandard deviation(σ)=0.5 hours