We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive pseudonymised information about your use of our website. cookie policy and privacy policy.
 
+0  
 
-1
76
2
avatar+123 

8.

The 8th grade class needed to take a math placement exam to be placed in an Algebra course their 9th grade year.

 

The students were classified by whether or not they passed the math exam.

45% of the student population is male and 60% of the students passed the exam.

Records also indicated that 40% of the female students passed the exam.

 

a. Complete the following hypothetical 1000 two-way table: (i think i got the chart correctly)

 

Passed the exam

Did not pass the exam

Total

Male

380

70

450

Female

220

330

550

Total

600

400

1000

 

 

b. Estimate the probability that a student selected at random from those enrolled in the classes passed the course.

 

 

 

c. A student was randomly selected from the student that completed the exam. If the selected student was male what is the probability this student passed the exam?

 

 

 

d. A student was randomly selected from the students that completed the class. If the selected student is female, what is the probability this student passed the course?

 

 

 

e. Do you think gender and whether or not a student passes the exam are related?

 Feb 24, 2019
 #1
avatar+18360 
0

deleted......

 Feb 24, 2019
edited by ElectricPavlov  Feb 24, 2019
 #2
avatar+18360 
+2

OK...table looks correct.

 

b   out of 1000 students   600 passed       so   600/1000 = 3/5 = 60 %

 

c  380 out of 450 males passed the exam     380/450  =   38/45 = 84% of males passed the exam.

 

d  220/550 =  22/55= 40% of females passed the exam

 

e  It DOES appear that if student is a male , student is more likely to pass the exam.

 Feb 24, 2019

3 Online Users