When subtracting negative numbers, remember that two negatives equal a positive. Change the two negative signs into a positive. -10 – (-4) becomes -10 + 4. You can use mental math or a number line to get -6 as your answer. Question 2: What is -4 x 5? Question 3: What is -...
The largest file size that can be stored in a gigabyte is 1 gigabyte itself. Since a gigabyte is a unit of storage, it can accommodate a file size equal to its own capacity. So, the maximum file size that can fit in a gigabyte is exactly 1 gigabyte. ...
Example 1 Let be the property that at least two of are prime. Then the sign patterns , , , are forbidden, because prime numbers have a Liouville function of , so that can only occur when at least two of are equal to . Example 2 Let be the property that is prime and is almost ...
Mobile analytics: You want a tool that can give your people access to the information they need even when they’re on the road. But not all mobile analytics solutions are created equal. Look for one that not only offers voice-enabled access and real-time alerts, but provides advanced capabi...
present. For engaging messages, students were asked to rate their current teacher so that the students in a class rated the same teacher. To diminish potential bias, all students were studying the same subject (i.e. mathematics) and, thus, attended an equal number of hours of classes per ...
(1) k°1 is not equal to 1°k for some numbers k. (2) °represents subtraction.<6>On Jane's credit card account, the average daily balance for a 30-day billing cycle is the average of the daily balances at the end of each of 30 days. At the b 30、eginning of a certain 30...
To find an arithmetic mean, add up the numbers in a set and divide by the total quantity of numbers in the set. To calculate the geometric mean, multiply all the values in a dataset, then take the root of the sum equal to the number of values within that dataset. Eliana Rodgers / I...
The harmonic mean is calculated by dividing the number of observations, or entries in the series, by the reciprocal of each number. In contrast, the arithmetic mean is simply the sum of a series of numbers divided by the count of numbers in that series. The harmonic mean is equal to the...
is if there is an even number of data points. In that case, you'd use the average of the middle two numbers to get the median. In the example above, if you had 20 students instead of 19, the median of their scores would be thearithmetic averageof the tenth and eleventh numbers. ...
For example, two participants, Alex and David, are 22 and 24 years old, respectively. The sample selection cannot pick one over the other based on some preferential mechanism. They both should have an equal chance of being selected from their age group. The strata could look something like ...