A) Since you need the probability of the person being a freshman and a C grade student, the probability will be 8/45 (number of C grade student who are freshmen divided by the total number of people)
b) You have to add the two probabilities that you are going to find whenever you see an 'or' function.
Student is a sophomore = 22/45
Student made an A = 7/45
Probability = 22/45 + 7/45
= 29/45
c) Whenever you see an 'and' function, you have to multiply up the probability.
Student is a sophomore = 22/45
Student made an A = 7/45
Probability = 22/45 * 7/45
= 154/2025
d) Student made a D = 5/45
Student is a freshman = 23/45
Probability = 5/45 + 23/45
= 28/45
Hopefully, this made sense.
Answer: segment BC = 36 units
Step-by-step explanation:
As per the given information, we have
B, C and D are three points such that
segment BC = segment BD + segment DC ... (i)
And segment BD = segment DC ... (ii)
If segment BD = 18 units
Then, segment DC = 18 units [From (ii)]
segment BC = 18 units + 18 units [From (i)]
⇒segment BC = 36 units
Hence, length of = 36 units
Answer with Step-by-step explanation:
Given
Answer:
Yes, the quantities are proportional.
Step-by-step explanation:
To determine whether they were proportional or not, I compared the ratio of grams of sugar to servings in each pair of data points. 4/2, 6/3, 8/4, and 10/5 were the four points. All of them can be simplified to 2/1, which tells us that each serving of sugar is 2 grams, no matter how many servings are counted. This means that the amount of sugar grows in direct proportion to the number of servings.
No, because marathon runners are not a representative sample of all adults in the United States.