2 years ago

Is there a difference between the 80th percentile and the top 80%?

1 answer:

8 0

<span>Actually, yes there is. Being in the 80th percentile means that you are smart than 80% of the people (i.e. out of 100 people, you would be smarter than 80 of them). However being in the top 80% means that you are a part of the 80 smartest people out that same 100. </span>

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Boris is taking a quiz for an online class. For the quiz, the system randomly assigns 2 high-difficulty questions, 7 moderate-di

Leviafan [203]

Answer:

$\frac{7}{15}$

Step-by-step explanation:

The probability that Boris is assigned a moderate-difficulty question would be the ratio of number of moderately difficult questions to the number of total questions available.

The quiz consists of 2 high difficulty, 7 moderate difficulty, and 6 low difficulty questions. That is 2 + 7 + 6 = 15 questions in total.

and

the number of moderately difficult questions is 7

Hence the probability would be 7/15

8 0

3 years ago

What is the value of x so that the ordered pair (x, 1) is a solution to the equation 3x - y = 17?

Lisa [10]

3x-y=17
3x-(1)=17
3x=18
18/3
x=6

4 0

2 years ago

Who wants to text back and forth pls add me