Answer:
I think it is B but not 100% sure.
Step-by-step explanation:
Answer:
Simple random sample
Step-by-step explanation:
Simple random sampling is a sampling technique where a smaller group of subjects are selected for study from a larger group. The subjects chosen are chosen at random, avoiding bias as each selected sample has an equal chance of selection.
This sampling technique is a basic technique used in science for blinded experiments or to carry out randomized control tests. The avoidance of bias in this sampling technique, creates a balanced subset, carrying the greatest potential for representing the larger group.
As in this case, from a large sample of 327, 15 selections were made randomly, forming the subset of the larger group to be studied. Another example will be a study to identify the average number of minutes, spent by 1000 employees to get to work daily. To conduct this study, 250 of the 1000 employees could be selected at random and the number of minutes spent by each one analysed. The overall average gotten is then used to address the larger group as a whole.
Answer:
$18,900
Step-by-step explanation:
$17,500 x 1.08= $18,900
really need brainliest!!
Answer:
9
Step-by-step explanation:
In a equilateral triangle all angles are equal and 60° each so
7x - 3 = 60° ➡ 7x = 63° ➡ x = 9
Answer:
x = 10, x = 124
Step-by-step explanation:
(5)
Since Δ JKL is isosceles then the base angles are congruent, that is
∠ LJK = ∠ LJG = 80° , thus
∠ JLK = 180 - (80 + 80) = 180 - 160 = 20
x = 20 ÷ 2 = 10
(6)
Since Δ PQR is equilateral, then each of its angles = 60°
∠QRS = 60° - 32° = 28°
Since Δ SQR is isosceles then base angles are congruent, then
∠ SQR = ∠ QRS = 28 , thus
x = 180 - (28 + 28) = 180 - 56 = 124
