m∠1=31
m∠2=59
m∠3=90
m∠4=31
m∠5=90
hope this helps brainliest please!
Answer:
Step-by-step explanation:
given that on a six-question multiple-choice test there are five possible answers for each question, of which one is correct and four are incorrect
By mere guessing probability for choosing correct answer = p = 0.2
also each question is independent of the other
Hence if X is the number of correct questions then
X is binomial with p = 0.2 and n = 6
a) being correct on three questions,
=
(b) being correct on four questions,
= 
(c) being correct on all six questions
=
300,000+90,000+5,000+40=395,040
395,040+10000=405,040