The thundering herd, an amusement park ride, is not open to patrons less than 54" tall. if the mean height of park patrons is 68" with a standard deviation of 12 inches, what percent of the patrons will not be able to use this ride?

the z for 54" =
(the negative means 54" is less than the mean of 68." do not enter a negative percent.)

the percentage for the above z is %

this is the percentage of patrons between 54" and 68". the percentage for all patrons above 68" is %
(this corresponds to z = +4.)

so the percentage of patrons above 54" %

Is it true that product of 3 consecutive natural numbers is always divisible by 6? justifyyour answer

The students in a class were asked how many siblings they have. the data obtained is represented in the dot plot. the number of students who have no siblings is . the number of students who have three or more siblings is .

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?