Answer:
It is an Observational study. The population of interest is fifth-grade boys and girls in your school district.
Step-by-step explanation:
Consider the provided information.
Observational study is the study in which observer only observe the subjects, and measure variables of interest without allocating treatments to subjects.
Experiment study is the study in which the researchers are applying treatments to experimental units in the research, then the effect of the treatments on the experimental units is observed.
Now consider the provided survey.
Here, students are randomly selected form the population of fifth-grade boys and girls.
The aim of the study is to observe the subjects and no treatment was administered to the students.
Thus. it is an Observational study.
The population of interest is fifth-grade boys and girls in your school district.
The study is to observe who is faster fifth-grade boys or fifth-grade girls at solving Ken-Ken puzzles.
Answer:
15°C
Step-by-step explanation:
Find the difference by subtracting -4.8 from 10.2
10.2 - (-4.8)
Subtracting a negative number changes to adding a positive number:
10.2 + 4.8
= 15
So, the difference in temperature between the two cities is 15°C
Answer:
56 miles per hour
Step-by-step explanation:
Average speed is found using the formula (total distance)/(total time). The total time is 3 hours. The total distance is 120 + 48 = 168. Therefore, her average speed is 168/3= 56 Miles per hour
Answer:
A.
Step-by-step explanation:
Given:-
Actual size of billboard,
Width(w)=2.61 inches
Length(l)=6.14 inches
Now,
To create a billboard in scale 1 inch to 7.81 feet,
this means,
1 inch=7.81 feet --------------(as per scale)
So,
2.61 inches=2.617.81
2.61 inches=20.38 feet (Width)
6.14 inches=6.147.81
6.14 inches=47.95 feet (Length)
Now the area of billboard as per scale is:
Therefore billboard nearest area is A. 977
Answer:
it's going to get an order of division or multiplication