Amultiple choice question has 18 possible answers, only one of which is correct. is it "significant" to answer a question correctly if a random guess is made? consider an event to be "significant" if its probability is less than or equal to 0.05.a. nob. yes

No

Step-by-step explanation:

Considering significant: p <= 0.05

A multiple choice question has 18 possible answers, only one of which is correct.

which means that the probability is 1 out 18, so

p = 1/18 = 0.056

As 0.056 > 0.050

Then, it is not significant

step-by-step explanation:

1. practice, practice & more practice

2. review errors

3. master the key concepts

do not try to memorise the processes.

4. understand your doubts.

5. create a distraction free study environment

6. create a mathematical dictionary

7. apply maths to real world problems.

-2

7 - 9 = -2

reversed:

-2 + 9 = 7