Answer:
She did not separate her friends into different groups, and she didn't apply a treatment.
Step-by-step explanation:
Alice decides to ask 25 of her friends if they listen to music while they do their homework and what their grades are.
She finds that her friends who have high grades also listen to music while they do their homework.
She tells her parents that she has proven that listening to music while doing homework will cause her grades to improve.
First of all it cannot be proven like this way.
Secondly, she did not use a random sample, and did not separated her friends into groups and applied treatment.
So, the answer is She did not separate her friends into different groups, and she didn't apply a treatment.
D, the answer choice c is wrong because it is not written properly
Answer:
3000 seats
Step-by-step explanation:
Represent the total number of seats by t. Then:
0.10t = 300 seats, and:
t = 3000 seats
Answer:
The answer to your question is: L = 30 ft
Step-by-step explanation:
Data
man = 6 ft
man shadow = 5 ft
lamppost shadow = 25 ft
lamppost height = ? = L
Process
L = 30 ft
Answer:
d.
A histogram deals with continuous data in ordered columns, while a bar graph deals with discrete data in separate columns.
Step-by-step explanation:
