A florist determines the probabilities for the number of flower arrangements they deliver eachday.MeanVariance =8Standard Deviation =1920 21Find the mean, variance, and standard deviation of the distribution rounded to 4 decimal places.22 23P(z) 0.24 0.23 0.31 0.11 0.11Approximately how many arrangements should the florist expect to deliver each week, rounded to the nearest wholenumber?es.

Given that Probability distribution table x 19 20 21 22 23 P(x) 0.24 0.23 0.31 0.11 0.11…

Answered: Mean= Variance= B Standard Deviation=…

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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Please answer 4-10. Dont use excel
X is normally distributed with mean ?= 60 and standard deviation ?= 3. Find the 65th percentile. Round your answer to 2 decimal places.
30
Remembering that the standard deviation measures the dispersion of a dataset relative to its mean and is calculated as the square root of the variance, which of the following values for the standard deviation would give you the highest position within the class? On an exam with a mean of u = 70, you have a score of X = 65. Options: 1. Cannot be determined 10
Suppose that the hemoglobin levels among healthy females are normally distributed with a mean of 14 g Research shows that exactly 95% of healthy . dL females have a hemoglobin level below 16.1 g . What is the standard deviation of the distribution of hemoglobin levels in healthy females? Carry your dL intermediate computations to at least four decimal places. Round your answer to at least two decimal places. X 5 acer Oll g dL Check of a tab esc 1 q a @ 2 © N W S # 3 e Q d $ 4 r L % 5 f t V 60 g & y O 7 b h U n G (50 8
No handwritten
find mean deviation , sample variance , standard deviation
A distribution of values is normal with a mean of 134 and a standard deviation of 71.4. Find P67, which is the score separating the bottom 67% from the top 33%. P67=_____ Enter your answer as a number accurate to 1 decimal place. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.
mis 1est. 20 Find the area of the shaded region. The graph depicts the standard normal distribution of bone density scores with mean 0 and standard deviation 1. 2-1.13 The area of the shaded region is. (Round to four decimal places as needed.) Enter your answer in the answer box. 4IVE 2877 2843 2810 2776 3085 3050 3015 2081 2946 2912 -0.5 3156 3121 3336 3300 3264 3228 3192 3446 3409 3372 -0.4 3557 3520 3483 3745 3707 3669 .3632 3594 -0.3 3821 3783 3859 4013 3974 3936 3897 4207 A168 4129 4090 4052 -0.2 4364 4325 4286 4247 4522 4483 4443 4404 -0.1 4602 4562 4681 4641 4840 4801 4761 4721 5000 4960 4920 4880 -0.0 NOTE Foraalus ofz balom349 te0.0001for the area hp
Suppose the weights of 3-month-old babies are normally distributed—baby boys with a mean of 14.2 pounds and a standard deviation of 1.9, and baby girls with a mean of 12.8 pounds and a standard deviation of 1.9. What proportion of 3-month-old baby girls will weigh between 12 and 13 pounds? (Round your answer to four decimal places.) Answer:__________________ You may need to use the appropriate appendix table to answer this question.
Heights of boys in a high school are approximately normally distributed with a mean of 175 cm and a standard deviation of 5 cm. What is the first quartile (25%) of heights? (Hint. you need to find the Z-score associated with 25th percentile from the table on page 410) a. 165.8 cm b. 169.6 cm c. 171.7 cm d. 173.5 cm e. 181.0 cm
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