Question Solved1 Answer Calculate the sample standard deviation and sample variance for the following frequency distribution of final exam scores in a statistics class. If necessary, round to one more decimal place than the largest number of decimal places given in the data. Final Exam Scores Class Frequency 56 - 64 14 65-73 74 - 82 10 83-91 4 92-100 10 Copy Data

i need very detailed answers with the formulas used and sentences to explain the obtained results  5. (7 points) Refer to the International Conference on Social Robotics (Vol. 6414, 2010) study on the current trend in the design of social robots. Recall that in a random sample of social robots obtained through a Web search, 28 were built with wheels. The number of wheels on each of the 28 robots is listed in the accompanying table. \[ \begin{array}{l} 44333642221333 \\ 34432822343342 \end{array} \] Source: Based on S. Chew et al., "Do Social Robots Walk or Roll?" International Conference on Social Robotics, Vol. 6414, 2010. a. Generate a histogram for the sample data set. Is the distribution of number of wheels mound-shaped and symmetric? (hint: 8 groups are preferred) (3 point) b. Find the mean and standard deviation for the sample data set. (1 point) c. Form the interval, . (1 point) d. According to Chebychev's Rule, what proportion of sample observations will fall within the interval, part c. (1 point) e. According to the Empirical Rule, what proportion of sample observations will fall within the interval, part c? (1 point)

1 Required information A 20-mm-diameter rod made of the same material as rods AC and AD in the truss shown was tested to failure and an ultimate load of 105 kN was recorded. Use a factor of safety of 3.0. Part 1 of 2 1,5 m D B 3 m -3 m 48 kN 48 kN Determine the required diameter of rod AC. The required diameter of rod AC is mm.

Required information A 20-mm-diameter rod made of the same material as rods AC and AD in the truss shown was tested to failure and an ultimate load of 125 kN was recorded. Use a factor of safety of 3.0. 1.5 m 3 m 48 KN 48 KN Determine the required diameter of rod AC. The required diameter of rod AC is mm

Required information Problem 15-4A (Algo) Preparing job cost sheets, recording costs, preparing inventory ledger accounts LO P1, P2, P3 [The following information applies to the questions displayed below] Watercraft's predetermined overhead rate is 200% of direct labor. Information on the company's production activities during May follows. a. Purchased raw Required information Problem 15-4A (Algo) Preparing job cost sheets, recording costs, preparing inventory ledger accounts LO P1, P2, P3 [The following information applies to the questions displayed below] Watercraft's predetermined overhead rate is 200% of direct labor. Information on the company's production activities during May follows. a. Purchased raw materials on credit, $220,000 b. Materials requisitions record use of the following materials for the month. Job 136 Job 137 Job 138 Job 139 Job 140 Total direct materials Indirect materials Total materials requisitions Job 136 Job 137 30h 138 300 119 $ 49,500 32,500 19,400 c. Time tickets record use of the following labor for the month. These wages were paid in cash Job 140 Total direct labor Indirect labor Total labor cost 23,200 6,400 131,000 20,500 $ 151,500 $ 12,300 10,500 37,900 39,200 4,000 101,900 14,500 $ 128,400 Journal entry worksheet < 3 Record raw material purchases on credit. Note: Enter debits before credits. Transaction Record entry 4 Raw materials inventory Accounts payable General Journal 5 Clear entry 6 7 8 Debit 220,000 ***** Credit 11 220,000 View general journal >

Instructions Campbell, Inc. produces and sells outdoor equipment. On July 1, 20Y1. Campbell issued $30,000,000 of 10-year, 10% bonds at a market (effective) interest rate of 9%, receiving cash at $31,061110. Interest on the bonds is payable semiannually on December 31 and June 30. The fiscal year of the company is the calendar year. Required: 1. Journalize the entry to record the amount of cash proceeds from the issuance of the bonds 2. Journalize me entries to record the following: The Rest sermanual interest payment on December 31, 201, and the amortization of the band premium, using the interest method (Round to the nearest dollar) b. The interest payment on June 30, 2022, and the amortization of me bond prevralum, using the interest method (Round to the nearest dolar) 3. Determine the total interest expense for 20Y1 afer to the Chart of Accounts for exact wording of account titles JOURNAL Score: 28/37 ACCOUNTING EQUATIC DEBIT DESCRIPTION POST. REF CREDIT ASSETS LLABILITIES DATE Jun.30 Interest Expense Premium on Bonds Payable Cash 1,500,000.00 Points Final Question Shaded cells have feedback. 3. Determine the total interest expense for 20Y1. $ Points 071 Hedback Check My Work 20Y1 Interest expense is the amount debited in 2(a)

Required information A 20-mm-diameter rod made of the same material as rods AC and AD in the truss shown was tested to failure and an ultimate load of 135 kN was recorded. Use a factor of safety of 3.0. 1.5 m C 3 m 3 m 8 EN 48 EN Determine the required diameter of rod AC The required diameter of rod AC is 45 mm. Required information A 20-mm diameter rod made of the same material as rods AC and AD in the truss shown was tested to failure and an ultimate load of 135 kN was recorded. Use a factor of safety of 3.0. 1.5 m B с 3 m 4B EN 48 EN Determine the required diameter of rod AD. The required diameter of rod AD is 32.76 mm.