in a survey of 290 newspaper readers,180 of them read the daily times,142 read punch and each reads at least one of the three papers. if 75 read the daily times and the guardians,60 read the daily times and punch, and 54 read the guardian and punch (a) draw a venn diagram to illustrate this information (b)(i) all three papers (ii) exactly two papers (iii) exactly one papers (iv)the guardian alone​

The ratio of rock songs to dance songs on jonathan’s mp3 player is 5: 6. the total number of rock and dance songs jonathan has is between 101 120. how many rock songs does he have?

Solve the system of equations y= 3/2 - 1, -x+ y =-3

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?