Problem 3 (10 points) a. Using the data set for 20 students on a 10-item test, calculate
item difficulty and index of discrimination for each item. Use
the top five students to make up the upper group; and the bottom
five for the lower group. Present your results in the table
provided below (include the computations).
Item # Item Difficulty Item Discrimination Index
1
2
3
5
6
7
8
9
10

answer: 3.26019516

step-by-step explanation:

irrational, then, just means all the numbers that aren't rational. every integer is a rational number, since each integer n can be written in the form n/1. however, numbers like 1/2, 45454737/2424242, and -3/7 are also rational, since they are fractions whose numerator and denominator are integers.

step-by-step explanation:

i those same problems in math and dont know how to do them

68719476736

step-by-step explanation:

8*8*8*8*8*8*8*8*8*8*8*8=68719476736