Is a percentile rank of 0 possible?

Percentile rank is a number between 0 and 100 indicating the percent of cases falling at or below that score. There is no 0 percentile rank - the lowest score is at the first percentile. There is no 100th percentile - the highest score is at the 99th percentile.

Is it possible to have 0 percentile?

You can't score better or worse than yourself so 0th and 100th percentile doesn't exist. There is no such a thing. If you scored best out of 100, you would be in the 99th percentile because you beat 99/100 scores. If you scored best out of 1000, you would be in the 99.9th percentile because you beat 999/1000 scores.

What is the lowest possible percentile?

Then the function assigns a percentile to each number in array: the lowest number is the 0th percentile, the highest number is the 100th percentile, and the middle number is 50th percentile.

Why is there no 100th percentile rank?

To put it in words, being in the 100 percentile would mean that 100% of the group has marks below yours. But since 100% of the group would include you, and your mark could never be below your mark, then 100% of the group could not be below you. Therefore you could never be in the 100 percentile.

What is a low percentile rank?

The National Percentile score ranks raw scores from highest to lowest and shows where an individual's raw score falls in comparison. The lowest score that is reported is 1; the highest is 99. Here's how the scale breaks down: 1- 4: lowest. 5-10: low.

Percentiles (1.7)

Is 69th percentile good?

being in the 93rd percentile is awesome (you scored better than 93% of the class!) being in the 69th percentile is nice. being in the 50th percentile is okay (you're in the top half of the class) being in the 10th percentile is pretty bad (90% of the class scored better than you).

Is 1st percentile good or bad?

If you're in the 1st percentile, it means that 99% of people who took the test did better than you.

What does it mean to be in zero percentile?

100th percentile would mean you scored better than 100% of people including yourself, which would be impossible because - as you said - you can't score better than yourself. 0th percentile would mean you scored better than 0% of people, meaning 100% of people scored either better or the same as you.

What is the 99th percentile IQ?

The IQ level corresponding to the 99th percentile is 135. It means that 99% of people have IQs at most 135, and only 1% of people have IQs greater than 135.

What is the 1% percentile?

Percentile is statistically defined as: "Each of the 99 intermediate values of a random variable which divide a frequency distribution into 100 such groups. So, if there is a group of 10,000 people, one percentile units would mean 1 percent, or 100 people."

Is 25th percentile bad?

The study showed that babies born below the 25th percentile for birthweight had a higher risk of developmental concerns compared to babies born between the 25th and 75th percentiles, with the smallest babies carrying the greatest risk.

Is 93 percentile bad?

It means you scored better than 93% of testtakers. It means you have scored better than 93% percent students who participated in the exam. It is not a rank neither it is your score. If there were 100 students who appeared for the exam and you got 93 percentile, it means you have done better than 93 students.

Is 25th percentile the lowest?

The first quartile is referred to as Q1 or the lower quartile. This value is the 25th percentile, in which the lower quarter of the values fall below the 25th percentile while three quarters are above it. The second quartile, or Q2, is the value at the 50th percentile. This is the median of the data set.

Is it better to be in the 1st percentile or 100th?

If you are in the top 1%, you are in the 99th percentile. But shouldn't 100th percentile be the best? No, that's because you can't be in the top 0%. Being in the top 0% means all people including yourself scored worse than you.

Is 82 percentile good or bad?

In this case, the 82nd percentile means that 82% of people scored worse than this person on the Language sections. That's good - remember, the test is a comparison tool. This student beat 82% of people who took the test. This person also did well on Math, beating 93% of people.

What is Elon Musk's IQ?

Let's try to understand Elon's level of IQ now that we know the obvious answer to that question. Elon Musk has a 155 IQ, which is regarded as being quite high.

Is 99 IQ good for a 13 year old?

Scores of 90-109 are Average. Scores of 110-119 are High Average. An IQ of 125 is considered by many schools to be “gifted.” Scores of 120-129 are Superior. And scores above 130 are Very Superior.

Is an IQ of 127 gifted?

85 to 114: Average intelligence. 115 to 129: Above average or bright. 130 to 144: Moderately gifted. 145 to 159: Highly gifted.

Is percentile a Z-score?

Percentile indicates the percentage of observations that fall below a certain value. It is easier to use and for the public to understand, but may not be a good quantitative tool. Z-score is the distance and direction of an observation away from the population mean.

How rare is 95th percentile?

For example, if your score on a test is on the 95th percentile, a common interpretation is that only 5% of the scores were higher than yours.

Is percentile top or bottom?

In statistics, a percentile refers to the number where a certain percentage of scores fall below that number. If a result falls in the 20th percentile, for example, it means that this result is higher than 20 percent of all results being compared against it, and below 80 percent of them.

Is 7th percentile good or bad?

A percentile of 7 indicates that 7 percent of the total population of test takers have scored below you, while you have scored less than 93 percent of the test takers. A 7 percentile is not a good score.

What is the 97th percentile IQ?

Generally, people consider an IQ of 130 or higher to be gifted. That's in about the 97th percentile. An IQ of 135 is in the 99.0184693146 percentile. An IQ of 160 is in the 99.9968313965 percentile.

Is 3rd percentile good?

This is the “average”. If a baby is on the 3rd percentile, this means that only 3 of 100 are below this line. And 97 are above. If a baby is on the 97th percentile, 3 in 100 children are above this line.