MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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The weights of a group of athletes are
are randomly selected from this group, find the
their mean weight is greater than 206.
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- Assume that blood pressure readings are normally distributed with a mean of 124 and a standard deviation of 4.8. If 36 people are randomly selected, find the probability that their mean blood pressure will be less than 126. OA. 0.8615 OB. 0.8819 OC. 0.0062 O D. 0.9938 C...arrow_forwardEvpte. If the probability of a defective bolt is 0.1, find Ta) the mean (b) the standard deviation for the distribution of defective bolts in a total of 400.arrow_forwardSuppose that the speed at which cars go on the freeway is normally distributed with mean 68 mph and standard deviation 5 miles per hour. Let X be the speed for a randomly selected car. Round all answers to two decimal places. If one car is randomly chosen, find the probability that is traveling less than 70 mph.arrow_forward
- The percent of fat calories that a person consumes each day is normally distributed with a mean of about 35 and a standard deviation of about ten. Suppose that 9 individuals are randomly chosen. Let X = average percent of fat calories. For the group of 9, find the probability that the average percent of fat calories consumed is more than six. (Round your answer to four decimal places.)arrow_forwardAdult males have a mean weight of 179 lbs with a standard deviation of 29 lbs. Find the probability that a random sample of 36 men will have a mean weight less than 176 lbsarrow_forwardThe NJ Department of Health has reported the average life span of NJ residents is 81 years. If the standard deviation is σ = 4 years, what is the probability of a person living to at least 92 years of age?arrow_forward
- Assume that blood pressure readings are normally distributed with a mean of 122 and a standard deviation of 6.4. If 64 people are randomly selected, find the probability that their mean blood pressure will be less than 124.arrow_forwardA bank's loan officer rates applicants for credit. The ratings are normally distributed with a mean of 200 and a standard deviation of 50. If an applicant is randomly selected, find the probability of a rating that is greater than 295.arrow_forwardThe scores in a large Algebra class are normally distributed with a mean of 65 and a standard deviation of 11. If a random sample of 25 students is selected, find the probability that the sample mean will be between 63 and 70.arrow_forward
- The weights of steers in a herd are distributed normally. The variance is 40,000 and the mean steer weight is 1400lbs. Find the probability that the weight of a randomly selected steer is between 1537lbs and 1679lbs Round your answer to four decimal places.arrow_forwardthe length of animals of a species is normal with population standard deviation 9.7 inches. the probability is 0.14 that the animal is hsorter than 27 inches. find the population meanarrow_forwardAssume that blood pressure readings are normally distributed with a mean of 124 and a standard deviation of 6.4. If 64 people are randomly selected, find the probability that their mean blood pressure will be less than 126. OA. 0.0062 B. 0.8615 C. 0.9938 OD. 0.8819arrow_forward
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