The data shows the number of grams of fat found in 9 different health bars.
12, 14, 16, 16.5, 11, 18, 18, 14, 20
what is the iqr (interquartile range) for the data?

Here are the CORRECT answers to the quiz.

The interquartile range is 5

Step-by-step explanation:

The interquartile range is the third quartile less the first quartile. Therefore, we need to organize the data from the smallest to the largest as:

11, 12, 14, 14, 16, 16.5, 18, 18, 20

Additionally, to find the position of the quartil i we can use the following equation:

Position Qi = i * (n+1)/4

Where n is the size of the data and i can be 1, 2 or 3.

So, if we replace n by 9 and i by 1, we get:

Position Q1 = 1 * (9+1)/4 = 2.5

it means that the first quartile is between the numbers on position 2 and 3 and we can calculated that quartile as:

Q1 = (Value 2nd position + Value 3rd position)/2 = (12+14)/2 = 13

At the same way, the position of the third quartile is calculated as:

Position Q3 = 3 * (9+1)/4 = 7.5

it means that the third quartile is between numbers on position 7 and 8 and we can calculated that quartile as:

Q3 = (Value 7th position + Value 8th position)/2 = (18+18)/2 = 18

Finally, the IQR is:

Q3 - Q1 = 18 - 13 = 5

stop using this to cheat on home work

step-by-step explanation:

dfbvfvdf

(w – 2.5)(w + 2.5)

(–4v – 9)(–4v + 9)

step-by-step explanation: