19. Shown here is a frequency distribution for the number of inches of rain received in 1 year in 25selected cities in the United States.Number of inchesFrequency5.5–20.5220.5–35.5335.5–50.5850.5–65.5665.5-80.5380.5-95.53Find the standard deviation.а. 20.82b. 21.25

Answered: Image /qna-images/answer/b03eaa7a-5beb-4e81-ac32-2b758b3c5f98.jpg

Answered: 19. Shown here is a frequency…

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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7. Suppose the length of newborn babies in a community is normally distributed with an average of 50 cm and a standard deviation of 3cm. Find the proportion of the babies in that community with the newborn length of 45.8cm.
8. Suppose the length of the newborn babies in a community is normally distributed with an average of 50 cm and a standard deviation of 3cm. If a newborn baby's length is 95th percentile, find the length in cm.
End O L ) 0 Alt PgUP 11 P PgDn Ins Del Packspace afte 2=(2>60) (2480) 5. A The ages of the thousands of residents of a retirement community are normally distributed with a mean of 70 and a standard deviation of 4 years. a. What proportion of this population is between 60 and 80? 2=60-70 -2.5 = 6.21 4 2-80-76 4 2= = 2.5=6.21 1.5 2= 68.5-45 - 5.87 니 71.5-45 4 b. If one sample of 45 residents is chosen at random, what is the probability that the sample mean age will be between 68.5 and 71.75? Stru ماما - 1-,99379 6. = 6.21% +6.21= -4 12,24% is between 60-80 years old 2.5 c. Between which two symmetric limits are 95% of all the possible values of the sample means? 4 FIST Standar 4. PCX a) x-
What is the population standard deviation of the data set? {5,6,7,7,9{ GeoGebra Graphing Calculator a.1.33 b.1.48 c.1.80 d.1.71
16.
suppose that peoples heights in centimeters are normally distributed with a mean of 170 and a standard deviation of 5. we find the heights of 60 people. round to nearsr whole number. how many 165 to 175cm tall? how many are taller than 166cm?
Pavan.88.9

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19. Shown here is a frequency distribution for the number of inches of rain received in 1 year in selected cities in the United States. Number of inches Frequency 5.5-20.5 20.5–35.5 3 35.5–50.5 8 50.5–65.5 6 65.5–80.5 3 80.5–95.5 3 Find the standard deviation. а. 20.82 b. 21.25