Survey 50 randomly selected seventh-grade students at each of the district’s middle schools. Then the correct option is A.
<h3>What is a sample?</h3>
A sample is a group of clearly specified components. The number of items in a finite sample is denoted by a curly bracket.
The athletic director of a large school district with about 1,500 seventh-grade students in five different middle schools wants to know which sport is most popular among seventh graders.
The survey method is the best to use will be
Random sampling is the method of selecting the subset from the set to make a statical inference.
Survey 50 randomly selected seventh-grade students at each of the district’s middle schools.
Thus, the correct option is A.
More about the sample link is given below.
brainly.com/question/350477
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Answer:
Maria's book is 202 pages long, Brandon's book is 146 pages long
Step-by-step explanation:
We can set this up with 2 variables: lets say that Maria's book length is x and Brandon's is y.
We can see that Maria's book is 56 pages longer than Brandon's and can come up with an equation:
x=y+56
We also see that their booklengths add up to 348, and can get:
x+y=348
From here, we solve for x and y. We can use substitution to find y.
x+y=348
(y+56)+y=348
2y=292
y=146
Here we plug in for x:
x=y+56
x=(146)+56
x=202
Therefor we get that Maria's book is 202 pages long, Brandon's book is 146 pages long
Answer:
The answer would be 30m squared.
Step-by-step explanation:
Multiply side and base and diveide by two.
Answer:
15 hrs.
Step-by-step explanation:
204/4 = 51 miles per hrour
765/51 = 15 hrs.
Answer:
y= 2/5-1
Step-by-step explanation:
You get the 2/5 because you go 2 to the right and go 5 up, the -1 is because the x-int is at -1.
