Answer:
These are the two answers that are the only ones that work
Step-by-step explanation:
x = -6
x = 2/3 = 0.667
Suppose the student guesses the answers, we shall consider this a binomial probability problem of success. This implies that getting a question right is p=1/5.
The number of questions is n=20 questions.
The mean of binomial distribution is
mean=n*p= 20*1/5=4
b] The standard deviation of a binomial distribution is given by:
σ=√(n*p*(1-p))
=√(20*0.2*0.8)
=1.79~1.8
Answer:
μ=4 ; σ=1.8
Answer:
A= 0.5, B=2.2, C=0.12, D=.0.9.
Step-by-step explanation:
TO GET Y I WILL USE THE REASON SUM OF ANGLES IN A TRIANGLE:
y=12°
TO FIND X I WILL USE THE REQSON ALTERNATE ANGLES
x=13°
THEE ANGLES ARE INSIDE THE PARALLEL LINES :NOTE.
Answer:
see explanation
Step-by-step explanation:
Using the rules of exponents
× 
⇔ 
= 
⇔ 
Thus
= 
× 
= 
×
= 
× 
= 
← as required
