Assume the random variable X is normally distributed with mean μ=50 and standard deviation σ=7. Find the 77th percentile

Q: Assume that adults have IQ scores that are normally distributed with a mean of µ-105 and a standard…

A: Given that  The adults have IQ scores normally distributed with  Mean (μ) = 105 Standard deviation…

Q: Jse the standard normal table to find the z-score that corresponds to the given percentile. If the…

A: Using the standard normal table to find the 33rd percentile we have to find the value of z such…

Q: Use the body temperatures, in degrees Fahrenheit, listed in the accompanying table. The range of the…

A:

Q: On Assignment 11.15, you found the mean and standard deviation for X, the number of dots facing up…

A: Given: μ=3.5σ=1.7078

Q: Use the standard normal table to find the z-score that corresponds to the given percentile. If the…

A: Z has follows standard normal distribution with mean zero and standard deviation one.

Q: e area of the shaded region. The graph to the right depicts IQ scores of adults, se scores are…

A: Population mean μ =100 Population standard deviation =15

Q: Assume that adults have IQ scores that are normally distributed with a mean of μ = 105 and a…

A: Here given situation is of normal distribution, which is continuous distribution. Let X : IQ of…

Q: The coefficient of variation CV describes the standard deviation as a percent of the mean. Because…

A:

Q: Use the difference scores (values - mean) below to calculate the population standard deviation.…

A: Given : Total number of elements in the population =N=9 Data is given as (values-mean)…

Q: Use the normal distribution of IQ scores, which has a mean of 130 and a standard deviation of 18,…

A: From the given information, the random variable X be the IQ scores  follows normal distribution with…

Q: Lauren is interested in determining if the children in her preschool lie more than the population.…

A: The mean of the population is given and the sample mean and sample standard deviation are given for…

Q: Use the standard normal table to find the z-score that corresponds to the given percentile. If the…

A: Given probability is P(Z<z0)=0.33

Q: Heights for group of people normally distributed with mean = 65 inches and standard deviation = 2.8…

A: Let us denote H as the heights follows normal distribution with mean 65 and standard deviation of…

Q: (a) Determine the mean and standard deviation of each data set. The mean of the data set for bond…

A: For Bond Mutual fund  given data is  3.2,1.8,1.9,3.4,2.4,2.7,1.6,2.0

Q: Find the area of the shaded region. The graph to the right depicts IQ scores of adults, and those…

A: normal distribution μ = 100σ = 15 P(85<x<110) = ?

Q: Find the mean (x̄), variance (v), and standard deviation (σ) of the data set. ( Round your answer to…

A: Proceed as shown below

Q: Find the mean and standard deviation for the individualized instruction scores. Scores…

A: Solution-: We find the mean and standard deviation for given frequency distribution table

Q: Allen's hummingbird (Selasphorus sasin) has been studied by zoologist Bill Alther.t Suppose a small…

A: Given: n=19x¯=3.15σ=0.40

Q: Find the area of the shaded region. The graph to the right depicts IQ scores of adults, and those…

A: The graph depicts IQ scores of adultsThe scores are normally distributed.Mean () = 100Standard…

Q: The coefficient of variation CV describes the of the mean. Because it has no units, you car to…

A: The question is about measures.Given :To find :1 ) Coefficient of variation for each sample data…

Q: Find the mean and standard deviation for the individualized instruction scores.

A:

Q: Find Ztest Round your answer to the nearest hundredth A

A: n=100, x¯=703μ=720,σ=92

Q: Q5 In a class of 35 students the CGPA of the class are summarized as Ex² = 562. Find the mean and…

A: Given,sample size(n)=35∑xi=112and ∑xi2=562

Q: Reading Improvement Program To help students improve the is to be administered to the bottom 6% of…

A: Given Information: Mean μ=124.4 Standard deviation σ=23 Reading program is to be administered to the…

Q: Find the area of the shaded region. The graph to the right depicts IQ scores of adults, and those…

A: Step 1:Given that :mean(μ)=100Standard deviation(σ)=15Let X is the IQ score of adults .We want the…

Q: The area of the shaded region is (Round to four decimal places as needed.)

A: It is given that  Mean = 100 Standard deviation = 15

Q: Use the standard normal table to find the z-score that corresponds to the given percentile. If the…

A: GivenP18 =

Q: Frequency The table shows the magnitudes of the earthquakes that have occurred in the past 10 years.…

A: Enter the data in Excel.

Q: Tign pres of adults, and res are normally distributed with a mean of 100 and a standard deviation of…

A: Population mean=100 , population standard deviation =15

Q: Scores on the verbal Graduate Record Exam​ (GRE) have a mean of 448 and a standard deviation of 113.…

A:

Q: In an Algebra class, the scores on a test are normally distributed. The middle 68% of the scores…

A: According to Empirical rule (68-95-99.7 rule) Given that the middle 68% of the scores fall…

Q: The FICO credit score is used by banks and other lenders to determine whether someone is a good…

A: Sample size(n)=100Sample mean()=703Population standard deviation()=92and

Q: Age of Senators The average age of senators in the108th Congress was 59  years. If the standard…

A:

Q: Use the standard normal table to find the z-score that corresponds to the given percentile. If the…

A: Z has follows standard normal distribution with mean zero and standard deviation one.

Q: A statistics professor asks each of the students in an introductory statistics lecture to fill out a…

A: I have provided the answers using Excel

Q: bidcorp auction team's weekly mean income $1000 and the standard deviation of this team is $100 the…

A: The objective of this question is to find the percentage of the auction team's members who have an…

Q: The FICO credit score is used by banks and other lenders to determine whether someone is a good…

A: sample size(n)=100Mean()=703standard deviation()=92significance  level()=0.05

Q: Use software or a calculator to find the range, variance, and standard deviation of the following…

A: Measure of central tendency measures the central or average value of a dataset. Measured of…

Q: Temperatures a city are distributed approximately normal, with a mean of 61 degrees fahrenheit and a…

A: Given data,Mean μ=61sd    σ=6P(X<70.5)=?

Q: Use the normal distribution of fish lengths for which the mean is 8 inches and the standard…

A:

Q: IQ scores are normally distributed with mean = 100 and standard deviation = 16. What IQ score does…

A: GIVEN DATA, NORMAL DISTRIBUTIONμ=100σ=16we have to find out the IQ score does the letter A represent…