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See an object at 20 feet that a normal eye would see at 100 feet.

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14y ago

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What does 20 100 vision mean?

Having 20/100 vision means that a person can see at 20 feet what someone with normal vision can see at 100 feet. This indicates poor visual acuity and may require correction with glasses, contact lenses, or surgery.


How many prime numbers are there from 100?

'from 100' ??? If you mean 'less than 100' then there are 25 primes. If you mean 'more than 100' then the answer is infinite, just like numbers are infinite.


If the mean of 100 numerical observations is 47.83 What is the value of the sum of all 100 numbers?

100 times the mean, or 4783, because the mean is defined as the sum of all the numbers divided by the number of the numbers.


How many whole numbers are there upto 100?

Depending on how you look at it, there are either 99 or 100 whole numbers up to 100. If you mean up to and including 100, then the answer is 100 whole numbers, if not, then the answer is 99 whole numbers.


The arithmetic mean of the direct 100 natural numbers is?

That depends what the numbers are.


What is different about the region of the retina called the fovea compared with the rest of the retina?

The fovea or fovea centralis that is a pit in the central region of the macula of the retina with a high concentration of cone photoreceptors (red, blue and green) that allows for 100% visual acuity including color vision comprises less than 1% of retinal size but takes up over 50% of the primary visual cortex in the brain.


What is the goemetric mean of 25 and 100?

The geometric mean of 25 and 100 is the square root of 2500 which is 50. In general, the geometric mean of n numbers is the n-th root of the product of the numbers.


Do you divide your mean by 4 or 2?

You divide by the number of numbers - if you want the mean of three numbers you divide by 3, if you want the mean of a hundred numbers you divide by 100.


Is there consecutive numbers that have a mean of 100?

Any odd number of consecutive numbers in which the center number is 100 will have this property. The simplest example is 99, 100, 101.


What 5 numbers have a mean of 20?

To find five numbers with a mean of 20, we can use the formula for mean: Mean = (sum of all numbers) / (total number of numbers). Since we have five numbers, the sum of the numbers should be 20 * 5 = 100. To find five numbers that add up to 100, we can choose any set of five numbers that sum up to 100, such as 10, 20, 30, 15, and 25.


What present out of 100 numbers have digits whose sum is 5?

I am not at all sure about "present". If you mean percent, the answer depends on which 100 numbers. Between 900 and 999, for example, the answer is 0%. For the FIRST 100 numbers: 1 to 100, the answer is 6%.


What is the mean value of 10 25 30 35?

It is: 10+25+30+35 = 100 and 100/4 = 25 which is the average mean value