The height of 1000 students are normally distributed with a mean of 170.5 centimeters and a standard deviation of 10.5 centimeters. Assuming that the heights are recorded to the nearest half-centimeter, how many of these students would you expect to have heights a. equal to 125.0 centimeters? b. greater than or equal to 178.0 centimeters? c. between 161.5 and 192.0 centimeters inclusive?

The height of 1000 students are normally distributed with a mean of 170.5 centimeters and a standard deviation of 10.5 centimeters. Assuming that the heights are recorded to the nearest half-centimeter, how many of these students would you expect to have heights a. equal to 125.0 centimeters? b. greater than or equal to 178.0 centimeters? c. between 161.5 and 192.0 centimeters inclusive?

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...

See similar textbooks

Similar questions

Find the mean and standard deviation of the number of red-headed Scots in a randomly selected group of 155. The probability of having red hair is still 13% for Scottish people. a. Mean = b. Standard deviation (Round to 2 places)=
The life span of Duracell batteries is normally distributed. The mean life span is 10,502 hours an the standard deviation is 415 hours. If 66,500 duracell batteries are manufactured, approximately how many of those batteries last at least 9,850 hours? A 39,900 B. 46,600 C. 59,900 D. 62,600
Find the indicated IQ score. 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. Click to view page 1 of the table. Click to view page 2 of the table. The indicated IQ score, x, is (Round to one decimal place as needed.)
A successful basketball player has a height of 6 feet 11 inches, or 211 cm. Based on statistics from a data set, his height converts to the z score of 5.17. How many standard deviations is his height above the mean?
According to Chebyshev's theorem, which of the following is the percentage of measurements in a data set that fall within three standard deviations of their mean? Select one: a. 75%. b. At least 75%. c. 89%. d. At least 89%. Clear my choice
In a Calculus test, the mean score is 42 and the standard deviation is 5. Assuming the scores are normally distributed, what percent of score is: a. Greater than 48 b. Less than 50 c. Between 30 and 48
The weights for newborn babies is approximately normally distributed with a mean of 6.1 pounds and a standard deviation of 1.8 pounds. Use the Cumulative Z-Score Table to answer the questions below. Write your answers rounded to the nearest whole number. Consider a group of 1200 newborn babies: • How many would you expect to weigh between 7.72 and 9.34 pounds? • How many would you expect to weigh less than 9.7 pounds? How many would you expect to weigh more than 6.37 pounds? How many would you expect to weigh between 6.1 and 7.54 pounds?
The mean value in a dataset is 100, and the value of one standard deviation is 20. What is the value c a piece of data is 2.5 SDs above the mean? Type your answer...
A successful basketball player has a height of 6 feet 3 inches, or 191 cm. Based on statistics from a data set, his height converts to the z score of 2.31. How many standard deviations is his height above the mean?
A successful basketball player has a height of 6 feet 4 inches, or 193 cm. Based on statistics from a data set, his height converts to the z score of 2.66. How many standard deviations is his height above the mean?
In a certain population, the mean score on a test is 420. The standard deviation is 105. If the distribution or scores is normal, which of these scores should occur most often. a. 385 b314 c. 540 d. 526