How many 4 digit numbers can you write using only the digits 2 and 5? With each digit having only 2 possibilities, the answer is 2 to the 4th power, which is 16. The 4 is because there are 4 digits. Think about the binary numbers 0000 to 1111, t â¦ here are 2 possibilities for each digit.
The CEN Exam fee is $360...BUT DO NOT PAY THIS AMOUNT!!!! ENA members can get the discounted rate of $220 ($140 savings!). If you're NOT an ENA member, you have the option to join. . All you do is pay your first year's dues (most states it's $100) AND you pay the discounted exam rate like you're already a member!
1 The cost of the certification exams varies per training center, so you still need to contact the center nearest you to get the actual price. 2  However, if we look at the centers that have published their exam rates, we found that the average cost of the exam is between $130 and $170. The costs of these training programs could cost anywehre from $1,500 to more than $2,500. 2  For example, a training course for AutoCAD being offered by Delta.edu costs $2,595.