7.1.33 Question H Suppose the birth weights of full-term babies are normally distributed with mean 3350 grams and standard deviationa = 510 grams. Complete parts (a) through (c) below. (a) Draw a normal curve with the parameters labeled. Choose the correct graph below. OA. Oc. OD. 3060 3350 2040 3350 o 2330 3350 3350 4370 2330 4370 (------- ------

7.1.33 Question H Suppose the birth weights of full-term babies are normally distributed with mean 3350 grams and standard deviationa = 510 grams. Complete parts (a) through (c) below. (a) Draw a normal curve with the parameters labeled. Choose the correct graph below. OA. Oc. OD. 3060 3350 2040 3350 o 2330 3350 3350 4370 2330 4370 (------- ------

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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1. According to a website the mean number of apps on a smartphone in the United States is 90. Assume the number of apps is normally distributed with a mean 90 and standard deviation 25. On the axis above, do parts A-F. A. Sketch a normal curve. (3 pt) B. Label the axis with correct letter (z, x or x) to represent a normal distribution. (3pts) C. Label the axis with the mean value (given in the problem). (2pts) D. Label the axis with the other 6 values (the values that represent 1,2, and 3 standard deviations away from the mean). (6pts) E. Mark the value of 85 on the axis and write 85 under the axis. (2pts) F. Shade the area under the curve that corresponds to "less than 85". (2pts) G. Find the probability that a randomly selected smartphone will have less than 85 apps on it. Round to 4 decimal places. Show your work or what you enter into a calculator. (8 pts)
Q.No.1. Differentiate between inferential and descriptive Statistics with example. Find the missing entries in the following frequency distributio Class Limit Frequency Relative Frequency Cumulative Frequency Cumulative Percentage Frequency 10 to - - - - - - to - - - 5 - - to - - 0.32 21 - - to - - - - - - to - 8 - 43 - - to 69 - - - - The following scores represent the final examination grade for an elementary statistics course:- 23 60 79 32 57 74 52 70 82 36 80 77 81 95 41 65 92 85 55 76 52 10 64 75 78 25 80 98 81 67 41 71 83 54 64 72 88 62 74 43 60 78 89 76 84 48 84 90 15 79 34 67 17 82 69 74 63 80 85 61 Make a grouped frequency distribution of this data and calculate…
Nn.39. Subject :- Advance Mathematic
4. Using the percentages, fill in the data percentages** below -3 -2 "1 0 68.3% 95.4% 99.7% ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ 2 3 Between -1 and +1 S.D.? Between -2 and +1 S.D.?. Between -3 and +1 S.D.? Mean: 42 **What percentage of the data (applies to any of the curves) falls between: The mean and +1 S.D.? Between the mean and -2 SD? Between -1 and +2 S.D.? Between -2 and +2 S.D.?, Between -3 and +2 S.D.? S.D.: 8 Between the mean and +3 SD?_______ Between -1 and +3 S.D.? Between-2 and +3 S.D.? Between -3 and +3 S.D.?
Which of the following statement is FALSE about X? ANOVA Source of variation df MS F stat P-value F crit Between Groups 5.2 a 2.6 Y 0.4177 3.8853 33.2 2.7667 Total 38.4 A. Within group variation В. Error C. Measure the variability between all group's mean and the grand mean. D. Measure the variability of the observed value around their respective group mean. А C D Answer
ats 2. In the mid-19th century, Sir Francis Galton demonstrated, through extensive data collection, that many human characteristics such as height and IQ are distributed throughout the entire population in accordance with the normal distribution. Galton recorded the heights of 8585 men in Great Britain. This forms a normal distribution with a mean of 67 inches and standard deviation of 2.5 inches. (a) Graph this normal distribution and label the x-axis. (b) What proportion of these men were between 66 and 68 inches tall? belool vin (c) What fraction of the adult male population in Great Britain was within one standard deviation of the mean height? [Use the normal distribution function in Excel, not the Empirical Rule] (d) What height corresponds to the 95th percentile in the Galton study?
Suppose the birth weights of full-term babies are normally distributed with mean 3650 grams and standard deviation o= 515 grams. Complete parts (a) through (c) below. (a) Draw a normal curve with the parameters labeled. Choose the correct graph below. O A. OB. OC. O D. 3135 3650 2620 3650 4165 4680 3135 4165 3650 3650 2620 4680 (b) Shade the region that represents the proportion of full-term babies who weigh more than 4680 grams. Choose the correct graph below. O A. O B. OC. O D. 4165 4680 3650 4165 3650 2620 3650 3135 4680 4680 3135 2620 3650 Statcrunch Next O 8:00 SAMSUNG esc %23 $ 1 2 3 4 backspace 8.
Ex. 4. The mean and standard deviation of the marks obtained by 1000 students in an examination are respectively 34.5 and 16.5. Assuming the normality of the distribution, find the approxiamte number of students expected to obtain marks between 30 and 60.
Calcium levels in people are normally distributed with a mean of 9.7 mgdL and a standard deviation of 0.5 mgdL . Individuals with calcium levels in the bottom 10% of the population are considered to have low calcium levels. Find the calcium level that is the borderline between low calcium levels and those not considered low. Carry your intermediate computations to at least four decimal places. Round your answer to one decimal place.
2. The table below shows the observations made on the colours of vehicles at a car p red blue white grey red red white yellow yellow pink black grey red black red grey white red blue red yellow white orange red a. What is the name of the most suitable average for this data? b. Determine the average for]this data. 3. Suppose you drive at 120 kilometres per hour for 150km, then at 105 kilometres per hour for 90km. Use the harmonic mean to find your average speed. 4. Calculate the geometric mean of 1.10, 1.12, 1.148, 1.038, and 1.16.