Summer high temperatures are distributed normally with a mean of 97.4 and a standard deviation of 3.5. NOTE: Round your z−z-score to 2 decimal places before calculating a probability. What is the summer high temperature that is the 7777th percentile of this distribution? 94.7 94.8 100.1 100 None of the above What is the probability that a randomly selected summer day has a high temperature of 100? 0.7704 0.2296 0.0069 0.9931 0 What is the probability that a randomly selected summer day has a high temperature greater than 100?

Q: A senior high student commutes daily from home to school. The average time for one way. trip is 20…

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

A: option A is correct graph According to given question,  We have:-   z1= 0.25 and z2 = 1.75To find…

Q: The weight of frogs in grams in a marsh population are normally distributed with mean (u) equal to…

A: Suppose the random variable x defines the weight of a randomly selected frog.

Q: The SAT scores for students are normally distributed with a mean of 1030 and a standard deviation of…

A:

Q: A particular fruit's weights are normally distributed, with a mean of 211 grams and a standard…

A: Mean=211 Standard deviations=18

Q: obability that, before the low-fuel light comes on, the car will travel more than 317 miles on the…

A: (a) Let X be the no. of miles driven by the car before low fuel light is on X ~(371,442)Then…

Q: A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of…

A: Given : Mean = x = 226.8 Standard deviation = s = 1.9 sample size = n = 27

Q: The average score of all golfers for a particular course has a mean of 72 and a standard deviation…

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Q: 20. Birth weights of babies born to full-term pregnancies follow roughly a normal distribution. At…

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Q: IQ is normally distributed with a mean of 100 and a standard deviation of 15. Suppose one individual…

A: let X: IQ X~N(μ,σ)where, mean(μ)=100    and standard deviation(σ)=15

Q: According to a study done by UCB students, the height for Martian adult males is normally…

A: From the provided information, Mean (µ) = 68 inches Standard deviation (σ) = 2.4 inches a) The…

Q: The amount of time taken by a bank teller to serve a randomly selected customer has a normal…

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Q: 6. What is the Z score for any mean? What is the z score for any standard deviation?

A: Let's consider for 1 st part.  The Z-score is a measure of how many standard deviations a data point…

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: e amounts of nicotine in a certain brand of cigarette are normally distributed with a mean of 0.952…

A:

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

A: Here, µ=0°C, σ=1.00°C.

Q: The weights of steers in a herd are distributed normally. The standard deviation is 200lbs. and the…

A: Let "X" be the weight of steers in a herd.

Q: The mean height of an adult giraffe is 18 feet. Suppose that the distribution is normally…

A: The curve of the normal distribution is bell shaped and symmetric about the mean of the…

Q: Males in the Netherlands are the tallest, on average, in the world with an average height of 183…

A: Given  Mean =  183cm Standard deviation = 10.5cm

Q: The amount of annual snowfall in a certain mountain range is normally distributed with a mean of 75…

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Q: The tip percentage at a restaurant has a mean value of 18% and a standard deviation of 6%. What is…

A: Obtain the approximate probability that the sample mean tip percentage for a random sample of 40…

Q: Systolic Blood Pressure Assume that the mean systolic blood pressure of normal adults is 120…

A: From the provided information, Mean (µ) = 120 Standard deviation (σ) = 5.6 X~N (120, 5.6)

Q: According to Money magazine, Maryland had the highest median annual household income of any state in…

A: Given information: For normal distribution, mean=median. That is, μ=75847 and σ=33800   d) Let a be…

Q: b. What is the probability that a student will complete the exam in more than 60 minutes but less…

A: Given that.   X~N( μ , ?)   μ=80    , ?=10   Z-score =( x - μ )/?

Q: What is the probability that the diameter of a dot is less 0.0026 inch? What is the probability that…

A: Here use normal distribution table for probability from calculated z score

Q: he average yearly consumption of water per person in Lebanon is 120 liters Wi standard deviation o.…

A: Given data,μ=120P(X>200)=0.2296σ=?

Q: On a planet far far away from Earth, IQ of the ruling species is normally distributed with a mean of…

A: For the distribution of the IQ scores of individuals, it is interpreted that: μ (mean)=107,  σ…

Q: The mean of the probability distribution below is 37.05, with a variance of 36.75 and standard…

A: Given:  Mean = 37.05 variance = 36.75 Standard deviation = 6.06

Q: The blood sugar levels of a person follows a normal curve with an average of 4.7mmol/L and a…

A: Solution: Let X be the blood sugar level. From the given information, X follows normal curve with an…

Q: The average American man consumes 9.6 grams of sodium each day. Suppose that the sodium consumption…

A: Mean()=9.6standard deviation()=0.8

Q: GlenBluss Community College has a population mean GPA is 2.82 with population standard deviation of…

A: Let X be the GPA of college students. Let us assume that X is normally distributed with mean 2.82…

Q: nd the probability that the average length of a randomly selected bundle of steel rods is less than…

A: Given, μ=112.8σ=1.2 n=25

Q: Watch your cholesterol: The mean serum cholesterol level for U.S. adults was 201, with a standard…

A: Mean(µ) = 201 Population Standard deviation(σ) = 40.8 N = 109 So , Sample standard deviation = σ /…

Q: How do I do this problem?

A: Solution: Let X be the IQ score. From the given information, X follows normal distribution with mean…

Q: A soft drink machine outputs a mean of 29 ounces per cup. The machine's output is normally…

A: given data normal distributionμ = 29 ouncesσ = 4 ouncesx = weight of cupP(25<x<31) = ?

Q: 88 Translate On average, indoor cats live to 15 years old with a standard deviation of 2.3 years.…

A: Here, mean is 15 and standard deviation is 2.3. a. The distribution of X is X~N(15, 2.32)

Q: Trucks in a delivery fleet travel a mean of 100 miles per day with a standard deviation of 38 miles…

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Q: The sick-leave time of employees in a firm in a month is normally with a f 100 hours and a standard…

A: Given  Mean (mu) = 100 hours Standard deviation = s= 20 hours

Q: A sample of size 60 will be drawn from a population with mean 31 and standard deviation 6. Use the…

A: