Answer:
(C) Sample: the 120 students surveyed. Population: the 1200 students at the high school. Parameter of interest: the average number of hours a student at this high school sleeps per night.
Step-by-step explanation:
The correct answer is (C). The sample is a subset of the population, and the parameter is a characteristic of the population of interest.
Answer: mean=87, median=87.5 and range=18
Step-by-step explanation:
Mean:
First add all the numbers
78+95+77+92+87+79+94+86+88+94 = 870
Then you divide the answer by counting the numbers
870÷10
=87
Median:
First arrange the numbers in ascending order (from smallest to largest)
77, 78, 79, 86, 87, 88, 92, 94, 94, 95
pick the two middle numbers which is 87 and 88
then you do 
= 175÷2
= 87.5
range = Largest number - smallest number
= 95-77
= 18
The answer in the problem will be B I believe
Answer:
i think its option ccc ydi aeg
because angle y is congruent to angle a
angle i is congruent to angle d
Answer:
A
Step-by-step explanation:
Given
9 > - 2m + 2 - 3, that is
9 > - 2m - 1 ( add 1 to both sides )
10 > - 2m
Divide both sides by - 2, reversing the symbol as a result if dividing by a negative quantity.
- 5 < m , thus
m > - 5 → A
