Questions 1,2,3,4

Chapter 7 Assignm Name:_Alexandra molina Answer fill the que Please practice the problems From my nestes first Upload your answers to Ca as before the deadtin D. The total area under the ormal curve The area under the normal curve to the left of p is C. The area under the normal curve to the right of p 2. Give reasons why the following graphs do not represent a normal density function. 0.43 Relative Frequency 0.2 X 6 12 Length (minutes) 3 . Use the following graphs to identify the values of mean u and standard deviation o X 9 14 4 19 24 29 -6 a. Mean = Standard deviation = b. Mean = Standard deviation = Suppose the monthly charges for cell phone plans are normally distributed with mean u = $60 and standard deviation 4 5 = $10. Draw a normal curve with the parameters labeled. a b. Shade the region that represents the proportion of plans that charge Less than $55. X 6 6 8 - 4 10