In a normal distribution, about what percent of x values lie between the first and second standard deviations (both sides)?0%4.3%27%50%68%95%99.7%100%

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Answered: O 0% O 4.3% O 27% O 50% O 68% O 95% O…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Number of ChildrenTable 1 shows the number of women (per 1000) between 15 and 50 years of age who have been married grouped by the number of children they have had. Table 2 gives the same information for women who have never been married.1 Number of Children Women per 1000 0 162 1 213 2 344 3 182 4 69 5+ 32 Table 1 Women who have been married Number of Children Women per 1000 0 752 1 117 2 72 3 35 4 15 5+ 10 Table 2 Women who have never been married 1http://www.census.gov/hhes/fertility/data/cps/2014.html, Table 1, June 2014. Condition gt requires numbers instead of "null" and "0" (a) Without doing any calculations, which of the two samples appears to have the highest mean number of children? Women who have been marriedWomen who have never been married Which of the distributions appears to have the mean most different from the median? Women who have been marriedWomen who have never been married…
A teacher announces a pop quiz for which the student is completely unprepared. The quiz consists of 20 true-false questions. The student has no choice but to guess the answer randomly for all 20 questions. The accompanying table gives the 20 correct answers, which were actually randomly generated. Complete parts a. and b. below. a. How many questions can the student expect to answer correctly simply by guessing? b. What percentage of answers were true, and what percentage would you expect? Why are they not necessarily identical? The percentage of answers that were true was? The expected percentage of answers that would be true is? Why are these answers not necessarily identical? A. With random phenomena, the proportion of times that something happens is highly predictable in the short run. B. With random phenomena, the proportion of times that something happens is highly random and variable in the short run. C. With random phenomena, the…
In a statistics class, there are 45 students where 3/5 of them are girls. In how many ways can a five-student committee be formed with exactly one boy? O 40950 O 315900 411075 O 82620
Blood pressure: A blood pressure measurement consists of two numbers: the systolic pressure, which is the maximum pressure taken when the heart is contracting, and the diastolic pressure, which is the minimum pressure taken at the beginning of the heartbeat. Blood pressures were measured, in millimeters of mercury, for a sample of 7 adults. The following table presents the results. Systolic 116 107 105 113 118 133 110 Diastolic 70 71 66 77 88 91 74 Construct a 99% confidence interval for the slope. Round the answers to at least four decimal places.
3, 7, 11, 15,..; find a14. a) a14 %3D
What is the answer?
1 2 -3 -1 2 %3D -1 0 2 3 3] -11 141 1. 7 -4] 15 -11 2. 5 3. 7 -71 4. -7 5. 7 -41 5. 5 1 O 2 O 3 4 5 O
QUESTION 3 How many votes are needed for a majority winner if there are 35 voters? ⒸA. 17 B. 17.5 OC. 35 OD. 18
A box contains 17 transistors, 4 of which are defective. If 4 are selected at random, find the probability of the statements below. a. All are defective b. None are defective a. The probability is 1 2380 (Type a fraction. Simplify your answer.) b. The probability is (Type a fraction. Simplify your answer.)
4 |U] d% (flo or funchon
13. Dan has a novel to read. He reads of the pages on each of Monday and Tuesday, 65 pages on Wednesday, another 20% of the pages on Thursday, and the final 61 pages on Friday. How many pages were in the novel?
10

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