Answer: the 800 people interviewed.
Step-by-step explanation:
Definition of a sample in statistics : A sample is a subset of a population sharing some similar characteristics in them. It basically represents the whole population having same characteristics.
For the given case , " The poll surveyed 800 randomly selected adults nationwide.
Here 800 randomly selected adults nationwide are representing the whole population of adults nationwide..
Thus , the sample in this setting is: <u>the 800 people interviewed</u> .
Answer:
a. 13
Step-by-step explanation:
x - youngest sister
x + 1 - middle sister
x + 1 + 1 - oldest sister
x + x + 1 + x + 1 + 1 = 39
3x + 3 = 39
3x = 36
x = 12
x+ 1 = 12 + 1 = 13
Step-by-step explanation:
The height, h in feet, of a rocket is given by, where t is time in seconds.
...(1)
We need to find the maximum height of the rocket and find the time the rocket was in the air. For maximum height, put
So, it will reach its maximum height in 2 seconds.
Now put t = 2 in equation (1) as follows :
So, the maximum height of the rocket and find the time the rocket was in the air is 254 feet and 2 seconds respectively.
145, you subtract the total number with how many you sold
523-378=145
Answer: (50 + 2) + 20 +4
Step-by-step explanation: you can split each number into two parts that equal that number, like 52 could be 31 +21