Dr. Groppe, a professor in the School of Computing at Klaggen University, is using a standardized final exam thatis "nationally normed" for his Computer Science II class. Nationally normed implies that the normal distribution isan appropriate approximation for the probability distribution of students' scores on the exam. The probabilitydistribution of students' scores on this standardized exam can be estimated using the normal distribution shownbelow.Note: An inflection point is a calculus term that indicates a point on a curve where the curve changes from curving up to curving down orvice versa. The distance along the x-axis from one inflection point to the mean is equal to the value of the standard deviation of theparticular normal distribution.InflectionInflectionPointPointx70 78861. State the mean of the distribution of the computer science exam scores based on the figureabove.2. State the standard deviation of the computer science exam scores based on the figure above.

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Answered: Dr. Groppe, a professor in the School…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Central Limit Theorem 2. According to the International Graduation Association, on average, high school girls in Canada spend $\$ 223.55$ on a prom dress with a standard deviation of $\$ 18.14$. If 76 high school girls are surveyed in Canada, what is the probability that the mean cost of their dresses is between $\$ 225.00$ and $\$ 228.00$ ? 3. It has been estimated that $23 \%$ of nurses are offered to work overtime on a regular basis. If we randomly selected 225 nurses, what is the probability that $25 \%$ or less of them will be offered overtime on a regular basis? SP.VS.717
Part C
Mean St. Dev. Distribution Males 23.5 in. 1.1 in. Normal Females 22.7 in. 1.0 in. Normal Use the data in the table for sitting adult males and females. These data are used often in the design of different seats, including aircraft seats, train seats, theater seats, and classroom seats. Find the probability that a female has a back-to-knee length between 22.0 in and 24.0 in Warning! This question is not multiple choice! You are to fill in the blank with the correct answer. Write your answer in the form 0.1234
Incomes in a certain town are strongly right-skewed with mean $40,000 and standard deviation $8,000. A random sample of 5 households is taken. What is the probability the average of the sample is more than $42,000?
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Customers of a restaurant have been complaining about food poisoning over the past week. A health professional was called to investigate. She tested a representative sample of the eggs and reported that 24% of the sample eggs tested positive for the salmonella bacterium. If a second health professional tests 66 eggs at random, what is the probability that exactly 14 test positive for salmonella? Use a normal distribution to approximate the answer and write it as a decimal rounded to the nearest hundredth.
please answer it correctly because i got the diferrent answers from bartleby
A psychologist believes that 65% of male drivers when lost continue to drive hoping to find the location they seek rather than ask directions. To examine this belief, he took a random sample of 350 male drivers and asked each what they did when lost. Assume that the sampling distribution of the sample proportion of male drivers who continue driving is at least approximately normal. If the belief is true, determine the probability that less than 60% said they continue driving. Show your work below
Assume that the average score on a statistical test is 8.5 and the variance is 2. The test was on the lighter side and the score distribution was very skewed (left skewed). What probability distribution is it reasonable to assume that the average grade of 3 randomly selected students who take the exam follows? 1. Normal distribution with mean 8.5 and variance 2. 2. Normal distribution with an average of 8.5 and a variance of 2/3. 3. Poisson distribution with an average of 8.5 and a distribution of 8. 4. The probability distribution cannot be predicted from the information provided.
A project’s profit (in thousands), is a random variable with normal distribution. The variance equal to the cube of the mean. The probability of the project loss (negative profit) is 6.94%. The expectation of the profit is:
Solve Q3 correctly and clear
Please answer the question in the photo. Thank you!

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