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1. Write a function that reads real (fractional) numbers , X1,X2,., XN from the keyboar into an array of N, starting from index e. The numbers are read after a prompt. 2. Write a function that displays the contents of an array in a predefined format wit the value of index 0, displayed last. 3. Write a function that uses the formulas below mean = (x, +x, ++ xw)/N s(x -)2 + (x - 5) + +(*-) N sd = vvariance a. Returns the mean (i.e. average) i, of the values in an array by value. variance = b. Returns the variance of the data set by reference. c. Returns the standard deviation of the data set by reference. 4. With the aid of the functions above, write a program that a. Gets from the user the size of a data set, N. b. Creates an array for real numbers using the value from (a) as size. c. Uses the function from (1) to populate the array with values from the user. d. Uses the function from (3) to get the mean, variance, and standard deviation. e. Uses the function from (2) to display the numbers in the array (data set). f. Displays the mean, variance, and standard deviation of the data set. SAMPLE RUN Enter size of data set: 5 Enter 5 numbers 2.4 -3 From the function in (1) 6 11.2 3 DATA SET Index 4: 3.000000 Index 3: 11.200000 From the function in (2) Index 2: 6.000000 Index 1: -3.000000 Index e: 2.400000 Mean: 3.92000e Variance: 21.673600 Standard Deviation: 4.655491

1. Write a function that reads real (fractional) numbers , X1,X2,., XN from the keyboar into an array of N, starting from index e. The numbers are read after a prompt. 2. Write a function that displays the contents of an array in a predefined format wit the value of index 0, displayed last. 3. Write a function that uses the formulas below mean = (x, +x, ++ xw)/N s(x -)2 + (x - 5) + +(*-) N sd = vvariance a. Returns the mean (i.e. average) i, of the values in an array by value. variance = b. Returns the variance of the data set by reference. c. Returns the standard deviation of the data set by reference. 4. With the aid of the functions above, write a program that a. Gets from the user the size of a data set, N. b. Creates an array for real numbers using the value from (a) as size. c. Uses the function from (1) to populate the array with values from the user. d. Uses the function from (3) to get the mean, variance, and standard deviation. e. Uses the function from (2) to display the numbers in the array (data set). f. Displays the mean, variance, and standard deviation of the data set. SAMPLE RUN Enter size of data set: 5 Enter 5 numbers 2.4 -3 From the function in (1) 6 11.2 3 DATA SET Index 4: 3.000000 Index 3: 11.200000 From the function in (2) Index 2: 6.000000 Index 1: -3.000000 Index e: 2.400000 Mean: 3.92000e Variance: 21.673600 Standard Deviation: 4.655491

C++ Programming: From Problem Analysis to Program Design
C++ Programming: From Problem Analysis to Program Design
8th Edition
ISBN:9781337102087
Author:D. S. Malik
Publisher:D. S. Malik
Chapter8: Arrays And Strings
Section: Chapter Questions
Problem 1TF: Mark the following statements as true or false. A double type is an example of a simple data type....
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TASKS 1. Write a function that reads real (fractional) numbers, x, x2,., XN from the keyboard into an array of N, starting from index e. The numbers are read after a prompt. 2. Write a function that displays the contents of an array in a predefined format with the value of index 0, displayed last. 3. Write a function that uses the formulas below mean = (x + x2 ++ XN)/N s(x, – x)? + (x2 - ) + .. +(* - ) variance = N sd = vvariance %3D a. Returns the mean (i. e. average) i, of the values in an array by value. b. Returns the variance of the data set by reference. c. Returns the standard deviation of the data set by reference. 4. With the aid of the functions above, write a program that a. Gets from the user the size of a data set, N. b. Creates an array for real numbers using the value from (a) as size. c. Uses the function from (1) to populate the array with values from the user. d. Uses the function from (3) to get the mean, variance, and standard deviation. e. Uses the function from (2) to display the numbers in the array (data set). f. Displays the mean, variance, and standard devíation of the data set. SAMPLE RUN Enter size of data set: 5 Enter 5 numbers 2.4 -3 From the function in (1) 6 11.2 3 DATA SET Index 4: 3.000000 Index 3: 11.200000 From the function in (2) Index 2: 6.000000 Index 1: -3.000000 Index e: 2.400000 Mean: 3.920000 Variance: 21.673600 Standard Deviation: 4.655491 SUBMISSION DEADLINE: THURSDAY 20TH MAY2921 SUBMISSION.LINK https://wwl.dcopbox.com/lrequest/ceTXykGA2ZNYIGYWQKZR
Transcribed Image Text:TASKS 1. Write a function that reads real (fractional) numbers, x, x2,., XN from the keyboard into an array of N, starting from index e. The numbers are read after a prompt. 2. Write a function that displays the contents of an array in a predefined format with the value of index 0, displayed last. 3. Write a function that uses the formulas below mean = (x + x2 ++ XN)/N s(x, – x)? + (x2 - ) + .. +(* - ) variance = N sd = vvariance %3D a. Returns the mean (i. e. average) i, of the values in an array by value. b. Returns the variance of the data set by reference. c. Returns the standard deviation of the data set by reference. 4. With the aid of the functions above, write a program that a. Gets from the user the size of a data set, N. b. Creates an array for real numbers using the value from (a) as size. c. Uses the function from (1) to populate the array with values from the user. d. Uses the function from (3) to get the mean, variance, and standard deviation. e. Uses the function from (2) to display the numbers in the array (data set). f. Displays the mean, variance, and standard devíation of the data set. SAMPLE RUN Enter size of data set: 5 Enter 5 numbers 2.4 -3 From the function in (1) 6 11.2 3 DATA SET Index 4: 3.000000 Index 3: 11.200000 From the function in (2) Index 2: 6.000000 Index 1: -3.000000 Index e: 2.400000 Mean: 3.920000 Variance: 21.673600 Standard Deviation: 4.655491 SUBMISSION DEADLINE: THURSDAY 20TH MAY2921 SUBMISSION.LINK https://wwl.dcopbox.com/lrequest/ceTXykGA2ZNYIGYWQKZR
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