Decide whether the experiment is a binomial experiment. If it is not, explain why. Survey 550 college students see whether they are enrolled as a new student. The random variable represents the number of students enrolled as new students.
What will be an ideal response?
Q. 2Decide whether the experiment is a binomial experiment. If it is not, explain why. Survey 500 investors to see how many different stocks they own. The random variable represents the number of different stocks owned by each investor.
What will be an ideal response?
Q. 3Decide whether the experiment is a binomial experiment. If it is not, explain why. Testing a cough suppressant using 980 people to determine if it is effective.
The random variable represents the number of people who find the cough suppressant to be effective.
Q. 4An education researcher was interested in examining the effect of the teaching method and the effect of the particular teacher on students' scores on a reading test.
In a study, there are four different teachers (Juliana, Felix, Sonia, and Helen) and three different teaching methods (method A, method B, and method C). The number of students participating in the study is 258. Students are randomly assigned to a teaching method and teacher. Identify the response variable.
A) Teacher B) Teaching method
C) Score on reading test D) Method A, method B, method C
Q. 5In a poll, respondents were asked whether they had ever been in a car accident. 469 respondents indicated that they had been in a car accident and 148 respondents said that they had not been in a car accident.
If one of these respondents is randomly selected, what is the probability of getting someone who has been in a car accident?
A) 0.002 B) 0.24 C) 0.76 D) 3.169
Q. 6Decide whether the experiment is a binomial experiment. If it is not, explain why. In a game you spin a wheel that has 19 different letters 950 times. The random variable represents the selected letter on each spin of the wheel.
What will be an ideal response?
Q. 7True or false, if the events A and B are mutually exclusive and the events B and C are mutually exclusive, then the collection of events A, B, and C must be mutually exclusive?
A) True B) False
Q. 8Decide whether the experiment is a binomial experiment. If it is not, explain why. You draw a marble 500 times from a bag with three colors of marbles. The random variable represents the color of marble that is drawn.
What will be an ideal response?
Q. 9Decide whether the experiment is a binomial experiment. If it is not, explain why. You observe the gender of the next 350 babies born at a local hospital. The random variable represents the number of boys.
What will be an ideal response?
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