A random variable follows the normal probability distribution with a mean of 100 and a standard deviation of 10. Determine the probability for a randomly selecte from this population in parts a through d below. Click here to view page 1 of the standard normal probability table Click here to view page 2 of the standard normal probability table, a. What is the probability that the value is less than 85? The probability that the value is less than 85 is 0.0668 (Round to four decimal places as needed.) b. What is the probability that the value is less than 75? tic The probability that the value is less than 75 is 0.0062 atio (Round to four decimal places as needed.) c. What is the probability that the value is more than 105? The probability that the value is more than 105 is (Round to four decimal places as needed.)

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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

Assume that adults have IQ scores that are normally distributed with a mean of μ=105 and a standard deviation σ=15. Find the probability that a randomly selected adult has an IQ between 90 and 120.   Click to view page 1 of the table. LOADING... Click to view page 2 of the table. LOADING...         Question content area bottom Part 1 The probability that a randomly selected adult has an IQ between 90 and 120 is enter your response here. ​(Type an integer or decimal rounded to four decimal places as​ needed.)

A random variable follows the normal probability distribution with a mean of 100 and a standard deviation of 10. Determine the probability for a randomly selected value from this population in parts a through d below.   Click here to view page 1 of the standard normal probability table.   Click here to view page 2 of the standard normal probability table.         Question content area bottom Part 1 a. What is the probability that the value is less than 90​? The probability that the value is less than 90 is enter your response here.   Part 2 b. What is the probability that the value is less than 85​? The probability that the value is less than 85 is ​(Round to four decimal places as​ needed.) Part 3 c. What is the probability that the value is more than 130​? The probability that the value is more than 130 is enter your response here.   Part 4 d. What is the probability that the value is more than 75​? The probability that the value is more than 75 is ​(Round to four decimal…

The figure below represents the data from Table 3.6 in the book. It summarizes the lengths of hospital stays (days) for a sample 25 patients. Duration of hospitalization (days) 6. 1. 01-05 06-10 11-15 16-20 >20 What is the probability that someone stayed in the hospital at most 10 days? None of these choices are correct.

Assume that adults have IQ scores that are normally distributed with a mean of μ=105 and a standard deviation σ=20. Find the probability that a randomly selected adult has an IQ less than 129.   Click to view page 1 of the table. LOADING... Click to view page 2 of the table. LOADING...       Question content area bottom Part 1 The probability that a randomly selected adult has an IQ less than 129 is  enter your response here. ​(Type an integer or decimal rounded to four decimal places as​ needed.)

A customer service center is tracking number of complaints in each week. Let X be the number of complaints in each week. The probability distribution of X is summarized as below.  X 0 1 2 3  Probability 0.4 ? 0.15 0.05 Can we be certain that the standard deviation of X is less than 3?

College students are randomly selected and arranged in groups of three. The random variable x is the number in the group who say that they take one or more online courses. Determine whether a probability distribution is given. If a probability distribution is given, find its mean and standard deviation. If a probability distribution is not given, identify the requirements that are not satisfied. Does the table show a probability distribution? Select all that apply. A. Yes, the table shows a probability distribution. B. No, the numerical values of the random variable x are not associated with probabilities. C. No, the random variable x is categorical instead of numerical. D. No, the sum of all the probabilities is not equal to 1. E. No, not every probability is between 0 and 1 inclusive. Find the mean of the random variable x. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. μ= students (Round to one decimal place as needed.) OB.…

Find the indicated probability. The age distribution of students at a community college is given below. Number of students Age (years) (f) Under 21 411 21-25 413 26-30 203 31-35 58 Over 35 24 1109 A student from the community college is selected at random. Find the probability that the student is at least 31. Round your answer to three decimal places. O 0.926 82 O 0.052 O 0.074 ASUS 近