Logical Indexing and Vector Practice

The provided file named HW$6\_$numbers $.$ mat contains a vector A of unknown length with random integers in it$.$ Modify the provided MATLAB script so that it

performs the operations listed below. Every task described below must use logical indexing. For your convenience, the tasks are also repeated in the comments of

the code.

Determine how many elements in A are equal to $4.$

Determine how many numbers in A are divisible by $3.$

Calculate the sum of all numbers in A that are greater than $45.$

Calculate the mean value of the numbers in A that are less than $70.$

Determine how many values in A are equal to the maximum value in $A.$

Create a new vector Even that contains only the even numbers in $A.$

Fill in the places in the code marked $...$ with code to accomplish the tasks. Hint: there may be a place or two where you find the mod function useful.

Script $o.$

$\%$ housekeeping commands would go here, but we leave them out to keep Grader happy

$\%$bring in data from data file

$...$

$\%$in one line, find how many elements of vector A are equal to $4$

Num$\_$of$\_4$s $=...$

$\%$in one line, find how many elements of vector A are divisible by $3$

Div$\_$by$\_3=...$

$\%$in one line, sum all of the elements of the vector A that are

$\%$greater than $45.$

Sum$\_$Over$\_45=...$

$\%$in one line, find the mean value of all elements of the vector A that are

$\%$ less than $70.$

Mean$\_$Under$\_70=...$

$\%$in one line, find how many elements are equal to the maximum value in the

$\%$vector A

Number$\_$at$\_$Max $=...$

$\%$in one line, create a new vector with all the even$-$valued elements in A

Even $=$dots.