Step-by-step explanation:
step 1. x + 4.75 - 6.55 = 5.43
step 2. looks like b is the only answer.
Answer:
40 students like hip-hop music
Step-by-step explanation:
C.
The negative (-) means that you are losing 17 of something.
in I and II you are also losing 17 things. I you are losing 17 dollars and II you are losing 17 yards. III, however, you are gaining 17 degrees so it is not the answer.
Answer:
Mean = 0.4
Variance = 0.24
Step-by-step explanation:
We are given the following in the question:
Possible outcomes:
X = 1(success)
X = 0(Fail)
Probability of success = p = P(X = 1) = 0.40
Since there are only two possible outcome, it follows a Bernoulli's distribution where the probability density function is given by:
The mean of distribution is:
The variance of distribution is:
A, 5 by 20
<span>Hope this helps!</span>