Step 1: Put the numbers in order. 1,2,5,6,7,9,12,15,18,19,27<span>Step 2: </span>Find the median (How to find a median). 1,2,5,6,7,9,12,15,18,19,27<span>Step 3: </span>Place parentheses around the numbers above and below the median. Not necessary statistically–but it makes Q1 and Q3 easier to spot. (1,2,5,6,7),9,(12,15,18,19,27)<span>Step 4: </span>Find Q1 and Q3 Q1 can be thought of as a median in the lower half of the data. Q3 can be thought of as a median for the upper half of data. (1,2,5,6,7), 9, ( 12,15,18,19,27). Q1=5 and Q3=18.<span>Step 5: </span>Subtract Q1 from Q3 to find the interquartile range. 18-5=13. Hope this helped:) -BRIEMODEE:)
126 years....it takes half of the sample to decay in 63 yrs. then half of the sample remaining, ( half of 50% is 25%) takes another 63 years which would total at 126
You can try finding numbers that are close to what you think you can use for exaple lets say we want to find the answer to 54x34 you could multiply 50x30 to get an estimated answer
