There are twenty classes at each of two middle schools. The number of students in each class at each school is shown in the dot
plots below.
Number of Students in Each Class at Poplar Middle School
Number of Students in Each Class at Oak Middle School
Which statement correctly compares the mean number of students for the data in the plots?
There are about 2 more students in each class at Poplar Middle School than at Oak Middle School.
There are about 2 more students in each class at Oak Middle School than at Poplar Middle School.
There are about 5 more students in each class at Poplar Middle School than at Oak Middle School.
There are about 5 more students in each class at Oak Middle School than at Poplar Middle School.
Mark this and return
Number of Students in Each Class at Poplar Middle School
Number of Students in Each Class at Oak Middle School
Which statement correctly compares the mean number of students for the data in the plots?
There are about 2 more students in each class at Poplar Middle School than at Oak Middle School.
There are about 2 more students in each class at Oak Middle School than at Poplar Middle School.
There are about 5 more students in each class at Poplar Middle School than at Oak Middle School.
There are about 5 more students in each class at Oak Middle School than at Poplar Middle School.
Mark this and return
2 answers:
Answer:
There are about 2 more students in each class at Oak Middle School than at Poplar Middle School.
Step-by-step explanation:
The rest of the question is the attached figure.
It is required to compare between the mean number of students for the data in the plots.
The mean is sum of all data divided by the number of data.
The data set of Poplar Middle School:
20,20,20,21,21,21,21,21,22,22,22,22,22,22,22,23,23,23,23,24
So, The mean = 435/20 = 21.75
<u>The data set of Oak Middle School:</u>
20,21,21,22,22,23,23,23,23,24,24,24,25,25,26,26,27,27,28,29
So, The mean = 483/20 = 24.15
The difference in mean = 24.15 - 21.75 = 2.4
So, the correct statement is:
There are about 2 more students in each class at Oak Middle School than at Poplar Middle School.
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<h2>Hello</h2>
The answers are:
a) The name of the function is y, and it's a Square Root Function.
b) Independent variable : x , dependent variable : y
c) The rule that assigns exactly one output to the very input is called "function".
d)
The name of a function can be also given as a single letter (y). For this exercise, the name of the function is "y", and it's a Square Root Function.
The independent variable of a function is the variable we assign the different values. For this exercise, the independent variable is designated with the letter "x".
The dependent variable is the function itself (y), and it's called "dependent" variable because its values will always depend on the "independent variable".
A function is the rule that states that there is exactly one output (range value) to the very input (domain value). A function only exists when there is exactly one output value (range) for each given input (domain), if there is more than one output for each input, the function does not exist.
To evaluate a function we assign values to the independent variable(x), hence:
Have a nice day!