On a multiple choice test with 17 questions, each question has four possible answer, one of which is correct. For students who g
uess at all answers, find the mean for the number of correct answers.
a. 12.8
b. 8.5
c. 4.3
d. 5.7
1 answer:
Answer:
C. 4.3
Step-by-step explanation:
Given that
n = 17
P = 1/4
Using binomial
Mean = np
Mean = 17 × (1/4)
= 17 × .25
= 4.25
Approximately = 4.3
You might be interested in
Answer:
Quotient = Divide
8 = 4x * 6
Hello!
0.3 × 0.03 = 0.009
The mass of the flower is 0.009 kilogram.
I think it’s 975 but I don’t know if I’m right
Six hundred two thousand hundred seven.