. The distribution of passenger vehicle speeds traveling on the Interstate 5 Freeway (I-5) in California is nearly normal with a mean of 72.6 miles/hour and a standard deviation of 4.78 miles/hour. a. What percent of passenger vehicles travel slower than 80 miles/hour? What percent of passenger vehicles travel between 60 and 80 miles/hour? B. How fast do the fastest 5% of passenger vehicles travel? C. The speed limit on this stretch of the I-5 is 70 miles/hour. Approximate what percentage of the passenger vehicles travel above the

Q: A dot plot of the speeds of a sample of 50 cars passing a policeman with a radar gun is shown below.

A: Hello! As you have posted 2 different questions, we are answering the first questions. If case you…

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A: Given that, Mean (μ)=49.9 sd (σ) = 3.74

Q: The distribution of passenger vehicle speeds traveling on the Interstate 5 Freeway (I-5) in…

A: Note: Hi, thank you for the question. As per our company guideline we are supposed to answer only…

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A: The mean is 310.7333, median is 271, and the standard deviation is 263.85.

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A: given X , follow normal distribution with μ=104210σ=9660

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Q: bengs spe Webster students. On average these Webster students spend 8.5 Euros for their lunch. Do…

A: It is an important part of statistics. It is widely used.

Q: Convert the following to z-score: a. Raw score of 100; mean of 60; SD of 15 b. Raw score of 95; mean…

A: Z=x-µσ This is the formula for z-score. x= raw score µ= mean σ= standard deviation (SD)

Q: Given a set of data where mean = 37, SD = 6.2. a. Calculate the z score for 31

A: Given the mean and standard deviation as 37 and 6.2 respectively.Want to calculate the z score for…

Q: TYPE

A:

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A: Mean = Average of all values Median = Middle Most value Mode = Most frequently occurred value Range…

Q: uppose that the low daily temeprature is a mean of 25 degrees and a standard deviation of 12…

A: Given data,μ=25σ=12

Q: In New York State, the mean salary for high school teachers in 2017 was $92,210 with a standard…

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A: Given: a=30 secondsb=10 minutes

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Q: 6. Which statistical tool studies the relationship between two or more variables? a. Median b. Range…

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Q: 6.) The daily water usage per person in Davao City is normally distributed with a mean of 18 gallons…

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A: It is needed to find the measure of central tendency that is affected by extreme values.

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A: Here in a one study, researchers sampled over 100,000 first-time candidates for the certified public…

Q: Convert the following to z-score: c. Raw score of 86; mean of 55; SD of 17 d. Raw score of 115; mean…

A: we know that  Z-score=X-μσwhere X=Raw scoreμ=meanσ=SD

Q: The speeds of cars traveling on UK motorways are normally distributed with mean 96 kilometers per…

A: We have given that.   X~N( μ , ?^2 )   μ =96 , ? = 10   Z-score =( x - μ )/?

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A: Given: Mean= 52.2mm Standard deviation=2.3mm. We standard normal deviation.

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