Two groups performed an experiment separately by tossing a coin in the air. Group P performed 50 trials and group performed 100 trials. Each group recorded the results in the table below:
Group Heads Tails
Р
35
15
Q
53
47
What conclusion can be drawn about the number of trials and the probability of the coin landing on heads or tails?
The experimental probability and the theoretical probability for group P is the same
O The experimental probability and the theoretical probability for group Q is the same
The experimental probability is closer to the theoretical probability for group Q than group P
The experimental probability is closer to the theoretical probability for group P than group Q

Flashback to semester a. are triangles pqr and stu congruent? what is the congruency that proves they are congruent? what is the perimeter of triangle pqr? show your work.

Stu and ambrose are working together on a study of whether diet is related to students' mental health. first, they randomly select 10 students from the student center and 10 students from the office of counseling and psychological services. then, they ask students to rate their diet in terms of healthiness on a scale of 1-100 before completing a 20-item mental health survey. a) name one of the constructs being studied b) how was the construct you named above operationally defined in this experiment? e) was the variable you described above their independent variable, their dependent variable, or a controlled variable? d) what is a confounding variable? what is a potential confound in this study?

What is the slope-intercept form for each equation in this system? compare the slopes and y-intercepts to describe the graph of the system. 3x - 4y = 28 4x + 10y = 20