The given table shows the number of pieces of junk mail that arrives in my mailbox each day. Number of Pieces of Junk Mail Frequency 2 2 3 14 6 16 12 545 w OA. 2.06 OB. 2.57 PC. 1.24 D. 0.91 6 What is the standard deviation for the number of pieces of junk mail received per day?
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- #10 What is the standard deviation of the following: 18, 18, 11, 13, 35, 50 Round to 2 decimal places as needed.Page 2 of 5 B. Organizing and Working with Data. 1. Find the z-score for the weight of a 155-pound woman. The mean weight of woman age 20 or older is 170.6 pounds with a standard deviation of 5.4 pounds. Round your answer to two decimal places.3. Find the standard deviation of X. A. 2.77 B. 2.79 C. 2.81 D. 2.83 E. 2.85
- Table 1.6 A biologist measured the width(in mm) of the upper molar in 40 specimens(population) of a certain mammal. These results are given in the ff. fdt. Mean width(mm) frequency 5.5 3 5.8 10 6.1 15 6.4 8 6.7 3 7.0 1 Calculate the mean deviation(MD) and standard deviation(s) to the nearest hundredths. Choose the relationship which will describe the fdt in terms of variation. Group of answer choices A. None of the measures describes the variation. B. The standard deviation is more variable than the mean deviation. C. Equal variation. D. The mean deviation is more variable than the standard deviation.K mly selected subject is given a bone density test. Bone density test scores are normally distributed with a mean of 0 and a standard deviation of 1. Draw a graph and find P2. the 2nd percentile. This is the bone density score separating the bottom 2% from the top 98%. Which graph represents P₂? Choose the correct graph below. O A. OB. The bone density score corresponding to P₂ is. (Round to two decimal places as needed.) P₂ O C. P2 Q O D. P₂TABLE 2: San Pedro Participant 1 2 3 4 5 Height (inches) 66 72 12pt 61 44 65 Weight (pounds) 240 190 Paragraph V 250 120 The above tables include data from all city employees in San Pedro. Use the table to answer the following question. 222 What is the standard deviation for height? Edit View Insert Format Tools Table BI U Αν T² Mages G D₂
- suppose that peices of a gallon of mill at various stores in one town have amean of $3.75 with a stabdard deviation of $0.09 use chebyshev theourm what is the minimum percentage of stires that sell a gallon of milk for between $3.57 and $3.93 round your answer tk ine decimal placePlease give the correct answerBig Blossom Greenhouse was commissioned to develop an extra large rose for the Rose Bowl Parade. A random sample of blossoms from Hybrid A bushes yielded the following diameters (in inches) for mature peak blooms. 2 in, 3 in, 3 in, 8 in, 10 in, 10 in
- Just do 2 and 3 please.° Following are the temperatures (in F) observed during eight wintry days in a midwestern city (sample): Find the range, variance, and standard deviation. Range = i 23 Variance = Standard deviation = i 16 Round your answers to two decimal places, where appropriate. F 6 -7 F -2 11 16 22Psychology students in the Izmir University of Economics completed the Dental Anxiety Scale questionnaire in 2020. In this study, scores on the scale range from 0 (no anxiety) to 20 (extreme anxiety). The mean score was 14 and the standard deviation was 3.5. Assume that the distribution of all scores on the Dental Arociety Scale is normal with u= 14 and o =3.5. Complete parts a through c A Click here to view a table of areas under the standardized normal curve A Table of Normal Curve Areas a. Suppose you score a 18 on the Dental Aniety Scale. Find the z-value for this score. z= (Round to the nearest hundredth as needed) b. Find the probability that someone scores between 13 and 18 on the Dental Anxiety Scale. P(13sxs 18) =O (Round to four decimal places as needed ) c. Find the probability that someone scores above 17 on the Dental Anxiety Scale Pix> 17) =D (Round to four decimal places as needed.) Enter your answer in each of the answer boxes 男明 國 1 1 网 解 8 1101 |8 与的 O