A distribution of values is normal with a mean of 188.4 and a standard deviation of 30. Find P^19 P^19, which is the score separating the bottom 19% from the top 81%. Round your answer to at least one decimal place.

Q: The distribution of scores on the SAT is approximately normal with a mean of μ = 500 and a standard…

A: From the provided information, Mean (µ) = 500 Standard deviation (σ) = 100 Let X be a random…

Q: A distribution of values is normal with a mean of 72 and a standard deviation of 64.3. Find Pz0,…

A:

Q: A student has taken a 50-point exam and wants to know how his score of 38 compares to the scores of…

A: It is given that Mean = 40 Standard deviation SD = 4 Score X = 38

Q: The average score on one of your MMW exams was 70 with a standard deviation of 15. Assuming the…

A:

Q: The scores on a standardized test are normally distributed with a mean of 115 and standa deviation…

A: Z = 2.2 , μ  = 115 , σ= 15

Q: High density lipoprotein in healthy males follow a normal distribution with a mean of 50 and a…

A: Solution : Given : X : High density lipoprotein in healthy males and X has normal distribution with…

Q: Diastolic blood pressures are assumed to follow a normal distribution with a mean of 85 and a…

A: Consider X be a random variable which follows normal variable indicates diastolic blood pressure. It…

Q: The scores on a standardized test are normally distributed with a mean of 120 and standard deviation…

A:

Q: The test scores of a physics class with 800 students are distributed normally with a mean of 75 and…

A: Given: Number of students=800 Test score is normally distributed with mean,μ =75sd,σ=7

Q: The mean or average age for a jail inmate back in 1978 to have started using cocaine on a daily…

A: Introduction: Denote X as the age of a randomly selected jail inmate in 1978 at which they started…

Q: The scores on a standardized test are normally distributed with a mean of 95 and standard deviation…

A:

Q: When Julian runs the 400 meter dash, his finishing times are normally distributed with a mean of 82…

A: Given that  The finishing times are normally distributed. Mean (μ)= 82 seconds Standard deviation…

Q: Suppose the mean height for men is 70 inches with a standard deviation of 2 inches. What percentage…

A: we have to find probability factor and from it value we get value of percentage  X = 74 μ = 70 σ = 2…

Q: The scores on a test are normally distributed with a mean of 110 and a standard deviation of 22.…

A: Let X be the random variable from Normal distribution with mean (μ) = 110 and standard deviation (σ)…

Q: The final exam grade distribution is, miraculously, exactly a normal distribution. Last year, the…

A: Obtain the minimum score required for the final exam to be in the top 10% of students and guarantee…

Q: A distribution has a standard deviation of σ= 20.  A score 10 points above the mean would have a…

A: Solution Where,

Q: The scores on a standardized normally distributed with a mean of 95 and standard deviation of 10.…

A: Standardized z-score:   The standardized z-score represents the number of standard deviations the…

Q: The weight of newborn babies is normally distributed, with a mean of 3.7 kilograms and a standard…

A: GivenThe weight of new born babies are normally distributed.The mean =3.7 KgThe standard deviation…

Q: Adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the…

A: Given information Mean µ = 69 inches Standard deviation σ = 2.8 inches

Q: The scores on a standardized test are normally distributed with a mean of 105 and standard deviation…

A: Let k is 0.6 standard deviation below the mean.  That means -0.6 is the z score of the value.…

Q: The cholesterol levels of a group of young women at a university are normally distributed with a…

A:

Q: On a standardized test, Jose scored an 87 and Mia scored a 74. The distribution of test scores for…

A:

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

A: If X be the scores. It is known- X~N85, 202 where, m: mean = 85 s: standard deviation = 20

Q: A distribution of values is normal with a mean of 187.9 and a standard deviation of 71.2. Find P80,…

A:

Q: The scores on a standardized test are normally distributed with a mean of 80 and standard deviation…

A: we have to find  raw score  ...

Q: Diastolic blood pressure are assumed to follow a normal distribution with a mean of 85 and a…

A:

Q: The mean for the population is 206 with a standard deviation of 20. Given a z score of -0.20,…

A: The mean is 206 and the standard deviation is 20.

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 scores on a standardized test are normally distributed with a mean of 95 and standard deviation…

A:

Q: The scores on a standardized test are normally distributed with a mean of 80 and standard deviation…

A:

Q: The lengths of pregnancies in a small rural village are normally distributed with a mean of 266 days…

A: Let "X" be the lengths of pregnancies in a small rural village in days.

Q: The average on quiz score is 4 with a standard deviation of only 0.385. What are the chances that…

A: Given that mean=4 and standard deviation= 0.385 Let, X= quiz score  X follows normal distribution…

Q: The scores on a test are normally distributed with a mean of 140 and a standard deviation of 28 What…

A:

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: For a medical study, a researcher wishes to select people in the middle 60% of the population based…

A:

Q: For patients with a certain disease, the amount of certain protein in the blood is normally…

A: Given information: Let X = random variable signifying the amount of protein in the blood for…

Q: The Principal decided that the top 30% of the class with the highest grades in statistics will be…

A: Given that, μ=80.51σ=10.2 Consider that the top 30% of the class with the highest grades in…

Q: The distribution of the amount of money spent by students on textbooks in a semester is…

A: The distribution of the amount of money spent by students on textbooks in a semester is…

Q: The scores on a standardized test are normally distributed with a mean of 80 and standard deviation…

A:

Q: Adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the…

A: Z score- If we have the population mean and the population standard deviation, we can calculate any…

Q: The scores on a test are normally distributed with a mean of 50 and a standard deviation of 10. Find…

A: Given that:

Q: The average weight of a group of students is 68 kg with a standard deviation of 8 kg. If the z-score…

A: Givenmean(μ)=68standard deviation(σ)=8z-score=0.5

Q: High density lipoprotein (HDL) in healthy males follows a normal distribution with a mean of 50 and…

A: Given Information

Q: A distribution of values is normal with a mean of 116.2 and a standard deviation of 60.1. Find P43,…

A:

Q: The distribution of enrolment in a class is normal with a mean if 55 and a standard deviation of 5.…

A:

Q: A distribution of values is normal with a mean of 137.5 and a standard deviation of 37.8. Find P57,…

A:

Q: High density lipoprotein (HDL) in healthy males follows a normal distribution with a mean of 50 and…

A: A continuous random variable X is said to follow Normal distribution with parameters μ and σ2 if its…

Q: imagine the average score on an exam is 71 with a standard deviation of 10. If scores are normally…

A: If a random variable x has a distribution with mean µ and standard deviation σ, then the z-score is…

Q: A distribution of values is normal with a mean of 246.2 and a standard deviation of 99.5. Find P78,…

A:

Q: The scores on a standardized test normally distributed with a mean of 110 and standard deviation of…

A: Here we need to find the score corresponding to  z = 2.2 standard deviations above the mean. Mean is…