Aprogrammer plans to develop a new software system. in planning for the operating system that he will use, he needs to estimate the percentage of computers that use a new operating system. how many computers must be surveyed in order to be 95% confident that his estimate is in error by no more than one percentage pointquestion mark complete parts (a) through (c) below.

Explain briefly why you cannot expect to find a previous version of every file with which you work.

Which excel file extension stores automated steps for repetitive tasks?

Write a program in plp assembly that counts up by one starting from zero (or one) inside a loop and writes this value to the leds every time the value is increased. the memory address of the leds is 0xf0200000. the table below shows the meaning and an example usage of the instructions covered in the video, plp instructions for project 1. instruction example usage meaning load immediate li $t0, 8 register $t0 is set to the value, 8. store word sw $t2, 0($t1) the value in register $t1 is used as the memory address. the value in register $t2 is copied into this memory address. add addiu $t4, $t3, 29 register $t4 is assigned the sum of 29 and the value in register $t3. jump j your_label_name the program jumps to the line following the label, "your_label_name: ". label your label name: defines a label called "your_label_name: " that can be jumped to