The table shows how the height of a stack of DVDs depends on the number of DVDs. What is a rule for the height?
2 answers:
Answer: Option 'A' is correct.
Step-by-step explanation:
Since we have given that
Number of DVDs Height
2 18
3 27
4 36
Since there is direct proportion between number of DVDs and height.
We need to find if the number of DVDs is n, then height would be
Hence, the rule for the height for n is h = 9n.
Option 'A' is correct.
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Answer:
Probability that exactly 5 of them have blue eyes is 0.1165.
Step-by-step explanation:
We are given that Researchers claim that 8% of people have blue eyes. Suppose the researchers' claim is true. Mrs. Greene has a Geometry class with 40 students.
The above situation can be represented through Binomial distribution;
where, n = number of trials (samples) taken = 40 students
r = number of success = exactly 5
p = probability of success which in our question is % of people
having blue eyes, i.e; 8%
<em>LET X = Number of students having blue eyes</em>
So, it means X ~
Now, Probability that exactly 5 of them have blue eyes is given by = P(X = 5)
P(X = 5) =
=
= 0.1165
Therefore, Probability that exactly 5 of them have blue eyes is 0.1165.