Find the area of the shaded region. The graph to the right depicts IQ scores of​ adults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15.   shaded area to the left 89

Q: Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores…

A: Given,   Mean = 100 Standard deviation = 15

Q: On a test that has a normal distribution, a score of 66 falls three standard deviations above the…

A: Given 66 falls 3sd above mean and 60 falls 1sd above mean

Q: A researcher wishes to estimate within $250 the mean amount of money a county spends on road repairs…

A: The sample mean amount of money a county spends on road repairs each year within $250, 87%…

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

A: From the provided information, Mean (µ) = 100 Standard deviation (σ) = 15 Let X be a random variable…

Q: Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores…

A:

Q: On a nationwide math test, the mean was 60 and the standard deviation was 7. If Roberto scored 90,…

A:

Q: Keenan scored 80 points on an exam that had a mean score of 77 points and a standard deviation of…

A:

Q: Find the z-score for the value 69, when the mean is 96 snd the standard deviation is 5. z-score= ?

A:

Q: Find the Z-Score for a IQ  test score of 142 when the mean is 100 and the standard deviation is 15.

A: It is given that the mean and standard deviation are 100 and 15, respectively. The IQ test score is…

Q: The mean grade on a science test was 79 and there was a standard deviation of 6. If your sister…

A: The z score explains the deviations of the observations from the mean. It is calculated using the…

Q: 6. Jared has a mean of 74 on his quizzes, with a standard deviation of 7. On his most recent quiz,…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: A sample of the number of sick days used by employees at a clinic is as indicated: 0,    0,    1,…

A: Given data 0,0,1,1,2,4

Q: The scores on a mathematics exam have a mean of 71and a standard deviation of 8. Find the x-value…

A: Let X denote the scores on a mathematics exam and it follows normal distribution with mean of…

Q: The graph illustrates the distribution of test scores taken by College Algebra students. The maximum…

A:

Q: Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores…

A: Let "x" be the IQ score of adults Find z-value: Since the total area under the normal curve is 1.…

Q: John wishes to estimate the population mean salary of college graduates who took a statistics course…

A: Solution: Note: Hello! As you have posted 2 different questions, we are answering the first question…

Q: Sean receives a 65% on his math test assume that the average grade on the test for his class is 44%…

A: Given: Score of Sean = x = 65 Population mean of the grade of the test= μ = 44 Standard deviation of…

Q: Suppose you were told you scored two standard deviation below the mean on a measure where the main…

A:

Q: Show your solution:  If Peter got a 79 on a Math Test with a mean score of 85 and a standard…

A: The z-score is calculated asz=x-μσ

Q: The monthly income of 5,000 workers at the Microsoft plant are distributed normally. Suppose the…

A:

Q: A successful basketball player has a height of 6 feet 4​inches, or 193cm. Based on statistics from a…

A: The z-score identify that the value how many standard deviations from the mean. If the z-score is…

Q: The following graph portrays the distribution of the number of spicy chicken sand- wiches sold at a…

A: Empirical Rule: The percentage of values lies between one standard deviation from the mean is 68%.…

Q: Omar is trying out to be a firefighter.  On the written exam, the mean of everyone who takes the…

A:

Q: Assume that Math test scores are normally distributed with a mean of 200 and a standard deviation of…

A: The provided information is  The mean and standard deviation is  µ=200 σ=40 P(X<120)=?…

Q: Suppose a friend tells you that the average length of trout caught in pyramid lake is u=19 inches.…

A: Given information Hypothesized mean = 19 Sample Standard deviation = 3.5 Sample mean = 18.6 Sample…

Q: f the value of adult male cholesterol is a normal distribution with a mean of 198 and a standard…

A: The question is about normal dist. Given : Mean of cholesterol value of adult male ( μ ) = 198 Std.…

Q: A successful basket ball player has a height of 6 feet 4 inches. Based on statistics his height…

A: As given, The basketball player has a height of 6 feet 4 inches and when his height is converted to…

Q: The mean composite score for seniors who took the SAT in 2010 was 1068. If the standard deviation…

A: From the provided information, Mean (µ) = 1068 Standard deviation (σ) = 100

Q: Assume a test in biology is normally distributed with a mean of 80 and a standard deviation of 5.…

A:

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

A: Given that,The graph to the right depicts IQ scores of​ adults, and those scores are normally…

Q: On a nationwide math test, the mean was 57 and the standard deviation was 4. If Roberto scored 90,…

A: Formula for z-score is

Q: A forest ranger researching ecosystem recovery following forest fires collected data on a large…

A: Given that Mean = 3.2 feet Standard deviation = 0.6 feet

Q: Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores…

A: Here IQ scores follow N(100,15). We need to find the corresponding IQ score from the graph.

Q: Find the indicated IQ score. The graph to the right depicts IQ scores of adults , and those scores…

A:

Q: A biologist is studying rainbow trout that live in a certain river and she estimates their mean…

A: Given that mean length = 526 millimeters Standard deviation = 84 millimeters Also given that x= 358…

Q: Many students did an exam, the mean was 15 and the standard deviation was 32 The highest mark was…

A: Given Mean μ=15, standard deviation σ=32  X=103

Q: standard deviation

A: If the random variable X follows a distribution with mean = μ and standard deviation = σ Then the Z…

Q: Find the indicated IQ score. The graph depicts IQ scores of adults, and those scores are normally…

A: The provided information are: Population mean (µ) = 100 Population standard deviation (σ) = 15…

Q: Justin got a score of 85 on an GE MMW examination for which the mean is 75. Justin realized that the…

A: Given, Justin got a score of 85 on an GE MMW examination for which the mean is 75. Justin realized…

Q: The scores of 800 students in a 100-item exam resemble a normal distribution with a mean of 78 and a…

A: Let X be the random variable from Normal distribution with mean (µ) = 78, standard deviation (σ) = 8…

Q: The mean SAT score for 13 male highschool students is 500 and the standard deviation is 100. the…

A: Let us denote the group of males as 1st sample and group of females as 2nd sample. Hypotheses for…

Q: Rachael got a 670 on the analytical portion of the Graduate Record Exam (GRE). If GRE scores are…

A: Given that Rachael's score, X = 670 Mean = 600 SD = 30

Q: Brian scored an 80% on a Chemistry Exam. The average on the exam was a 68%, with a standard…

A:

Q: The average on the Math section of the SAT was 500 with a standard deviation of 100. What score must…

A:

Q: what is the z score for a person who received an SAT mathematics score of 685?

A: Here Given, The mean mathematics score for seniors who took the SAT in 2018 was 531. If the standard…

Q: A man was out shopping buying 100 watermelons. He wanted to buy the largest fruit so he calculated…

A: We have to find out given probability..... As per guideline expert have to find out given first…

Q: The average score on the Stats midterm was 71 points with a standard deviation of 5 points, and…

A: Given that mean = 71 and SD = 5 And the z score is given by Z = 1

Q: Karen scored a 76 on an exam whose mean is 74 and whose standard deviation is 8. Find her z score.

A:

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

A: Given that, Mean = μ = 100 Standard deviation = σ = 15     To determine, what is the area of the…

Q: Suppose the main percentage in algebra is 70% and the standard deviation is 8% What percentage of…

A: Given,  mean value(μ) =70%  standard deviation(σ) = 8%Z=x-μσZ1=62-708=-1Z2=94-708 =3

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.