1. First of all arrange the data set in either ascending or descending order.
12, 19, 24, 26, 31, 38, 53. N = 7 (number of data items)
Median position = 1/2(N + 1)th item = 1/2(7 + 1)th item = 1/2(8)th item = 4th item = 26
First quatile = 1/4(N + 1)th item = 1/4(7 + 1)th item = 1/4(8)th item = 2nd item = 19
Third quatile = 3/4(N + 1)th item = 3/4(7 + 1)th item = 3/4(8)th item = 6th item = 38
Interquatile range = Third quartile - first quatile = 38 - 19 = 19
[[x]] means that the integer should be rounded down to the greatest integer that is of the same value as x or is lower than x.
Answer:
1,185.6 in.
Step-by-step explanation:
volume of the triangular prism = base area x height
the base in the shape of a triangle
area of a triangle = 1/2 x base x height
1/2 x 12 x 10.4 = 62.4 in²
volume = 62.4 x 19 = 1185.6 in
the tenth is the first number after the decimal place. To convert to the nearest tenth, look at the number after the tenth (the hundredth). If the number is greater or equal to 5, add 1 to the tenth figure. If this is not the case, add zero
The period of the function is 2pi