Let me give you a simple answer first and two deep answers next.Simple answer is, assuming that all months have the same number of days (which is very approximately true), 1/12.If you want a slightly deeper answer, then 31/365 or 31/366 is correct, depending upon whether the year is a normal year or a leap year.The correct answer, which might be argued as "philosophical", is as follows:The Gregorian calender, the current standard calender in most of the world, adds a 29th day to February, 97 years out of 400, a closer approximation than once every four years. This would be implemented by making a leap year every year divisible by 4 unless that year is divisible by 100. If it is divisible by 100 it would only be a leap year if that year was also divisible by 400.So, in the last millennium, 1600 and 2000 were leap years, but 1700, 1800, and 1900 were not. In this millennium, 2100, 2200, 2300, 2500, 2600, 2700, 2900 and 3000 will not be leap years, but 2400 and 2800 will be. The years that are divisible by 100 but not 400 are known as "exceptional common years". By this rule, the average number of days per year will be 365 + 1/4 - 1/100 + 1/400 = 365.2425.In 400 years, thereforethere are 303 normal years and97 leap yearsTotal number of days in 303 years110,595 days(normal years)Total number of days in 97 years35,502 days(leap years)Total number of days146,097 daysTotal number of August months400(in 400 years)Total number of days in August in12,400400 yearsProbability that a person is 0.084875 or 1 in11.78202born in August (=12,400 / 146,097) or 31 in365.24251 / 12 =0.08333331 / 365 =0.08493231 / 366 =0.084699There are assumptions in the above answer as well. These are1. That all days in a year have the equal probability (which is not strictly true, as records of births will be required for verification)2. The Gregorian calender has been in effect since 1700s. The probability as above will only work for years after the introduction of Gregorian calender.
The simplistic answer is that August will have five Mondays if the month starts on a Saturday, Sunday or Monday. Three days out of the seven so the probability is 3/7 = 0.4286. However, that assumes that any day of the week is equally likely and that is not the case. The impact of leap years and their 2800-year cycle is to increase the probability to 0.43
Humbaba
The increments of 4700, 2000, 3400, 1650, and 2800 can be found by calculating the difference in each number. 4700 - 2000 is 2700. 2000 from 3400 is 1400. 3400 minus 1650 is 1750. And the difference from 1650 and 2800 is 1150.
2800.
The front end estimate is 3000. But estimating a single number, in isolation and without context, is a complete waste of time. It all comes down to the context of what needs to be done with the number.If I had to add 2760 to 1 trillion, I would estimate it as 0.If I had to add 2760 to 0.0000000001, I would use the number as given, or possibly the front end estimate. If I had to divide it by 9, I might estimate it as 2700, because 2700/9 = 300. If I had to divide it by 70, I would estimate it as 2800, because 2800/70 = 40.
around 2700 - 2800 lbs
2800
560 goes into 2800 five times.
To find 3 percent of a number, multiply the number by 0.03. In this instance, 0.03 x 2800 = 84. Therefore, 3 percent of 2800 is equal to 84.
To find 3.5 percent of a number, multiply the number by 0.035. In this instance, 0.035 x 2800 = 98. Therefore, 3.5 percent of 2800 is equal to 98.
Oh, dude, rounding 2843 to the nearest hundred? That's like asking me to pick the closest doughnut in a bakery - easy peasy! So, 2843 is closer to 2800 than 2900, because it's like, 43 away from 2800 and 57 away from 2900. So, the rounded number would be 2800.
2800 Identify which place value is the hundredths place since this is what you're rounding to. In this case, a 7 is in the hundredths place. Now look at the digit to the right of it; in this case, it is a 5. Generally if the number is 5 or more we round up, so 2756 round to the nearest hundred is represented by 2800.
2800 first you write a 28 then, you write 00 for 100. Voila! You have 2800