Weekly salaries of college students in a large city are normally distributed with a mean of 650 dollars and a standard deviation of 65 dollars. Find the probability that a randomly selected weekly salary in this distribution is less than 585 dollars. P(X < 585) =

Q: The scores on the board are Normally distributed with a mean of 67 and a standard deviation of 13.…

A: From the provided information,X~N (67, 13)The bottom 5% of students will fail.

Q: The time it takes for a statistics professor to mark a single midterm test is normally distributed…

A: Obtain the probability that he needs more than 5 hours to mark all of the midterm tests.   The…

Q: Scores on a test have a mean of 86 and a standard deviation of 13. Jerrica has a score of 94.…

A:

Q: The weights of men in their 30s are normally distributed with a mean of 190 pounds and a standard…

A: From the provided information, Population mean (µ) = 190 pounds Population standard deviation (σ) =…

Q: Scores on a history test have average of 55 with standard deviation of 10. What is the probability a…

A:

Q: Scores for a standardized test are normally distributed with a mean of 1200 and a standard…

A: given data μ = 1200σ = 60 normal distributionn = 64P(1200&lt;x¯&lt;1214) = ?

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

A: Where,

Q: The salaries of a company's employees are normally distributed with mean 15000 and standard…

A:

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

A: Let "M" be the average length of the steel rods.

Q: A large number of applicants for admission to graduate for study in businesss are given an aptitude…

A: Let X denote the aptitude test scores and it follows normal distribution with mean of μ=400 and…

Q: The SAT scores (X) of the students in the U.S. in 2011 are normally distributed with a mean 1500 and…

A: The objective of this question is to find the percentage of students who scored below Darth Vader on…

Q: Females have pulse rates that are normally distributed with a mean of 74 beats per minute and a…

A:

Q: A distribution of values is normal with a mean of 103.6 and a standard deviation of 63.6. Find P62,…

A:

Q: Average ACT = 540 with a standard deviation of 134. What is the probability that a high school…

A: X~N( μ , ?)μ=540     , ?=134Z-score =( x - μ )/?

Q: A distribution of values is normal with a mean of 107.8 and a standard deviation of 82.8. Find P70,…

A: given data, normal distribution μ=107.8σ=82.8p70 score  of the class =?

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

A: The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the mean…

Q: A distribution of values is normal with a mean of 178.9 and a standard deviation of 78.7. Find P37…

A: Given Data : Population Mean,μ = 178.9 Population Standard Deviation,σ = 78.7

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

A: given data, normal distribution,μ=264.5σ=1we have to find out the average length separating the…

Q: To qualify for a police academy, applicants are given a test of physical fitness. The scores are…

A: Given : mean (μ ) = 62 standard deviation (σ) = 7                                  σ²  = 49

Q: The cost of unleaded gasoline in the Bay Area once followed an unknown distribution with a mean of…

A: The question is about sampling distributionGiven :Mean cost of unleaded gasoline (  ) =…

Q: The delivery times for Uber eats is normally distributed with a mean of 45 minutes and a standard…

A: From the provided information,

Q: A mandatory competency test for high school sophomores has a normal distribution with a mean of 495…

A:

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

A: Given, Let X be the length of steel rods

Q: A requirement for business graduate school is the GMAT.  The GMAT is normally distributed with a…

A: Given,mean(μ)=527standard deviation(σ)=112

Q: The scores on a standardized test are normally distributed with a mean of 85 and standard deviation…

A: Since z-score is a measure of how far the standard deviation is away from the mean (Above/below).…

Q: The Psych 230 students finished the course with a total population mean of 130 points and the…

A:

Q: s 6 hours a day. If college students were randomly selected, find the probability that the mean…

A: Let X be the random variable from normal distribution with mean (μ) = 6 hours and standard deviation…

Q: A soft drink machine outputs a mean of 26 ounces per cup. The machine's output is normally…

A: From the provided information,

Q: Suppose that replacement times for washing machines are normally distributed with a mean of 8.8…

A:

Q: A standardized exam's scores are normally distributed. In a recent year, the mean test score was…

A: It is given that Mean of test scores = 1537 And SD = 315

Q: The amount of time people spend at the gym follows a uniform distribution from 45 to 90 minutes.…

A:

Q: Assume that an intelligence test scores are distributed normallt with a mean of 100 and a standard…

A: Standard normal distribution: The standard normal distribution is a special case of normal…

Q: The weights of the U.S. female athletes at the 2016 Olympics are normally distributed with a mean of…

A: We have give that normally distributed with mean 147, standard deviation

Q: Each year students in a local school district write a national examination. The average on this…

A: Given data Mean = 150 Standard deviation=20

Q: A distribution of values is normal with a mean of 134.3 and a standard deviation of 92. Find P16,…

A: P16 is the score separating the bottom 16% from the top 84%. this is the 16th percentile.

Q: The average age of senators in the 108th Congress was 62 years. If the standard deviation was 12.5…

A: Solution: Let X be the age of senator. From the given information,

Q: Suppose the mean length of songs played on a radio station is 190 seconds with a standard deviation…

A:

Q: Scores on an IQ test are normally distributed with a mean of 50 and a standard deviation of 20.…

A: Given: Mean = 50 Standard deviation (σ) = 20

Q: Human body temperatures have a mean of 98.20°F and a standard deviation of 0.62°F. Convert 103.00°F…

A: Given,mean(μ)=98.20standard deviation(σ)=0.62

Q: A distribution of values is normal with a mean of 137.6 and a standard deviation of 55.7. Find P72,…

A: