What proportion of the class scored higher

Reference no: EM131771685

Question: Suppose that you were told that scores on an exam in a large class you are taking ranged from 50 to 100 and that they were approximately bell-shaped.

a. Estimate the mean for the exam scores.

b. Refer to the result about the relationship between the range and standard deviation in the previous exercise. Estimate the standard deviation for the exam scores, using that result and the information in this problem.

c. Suppose your score on the exam was 80. Explain why it is reasonable to assume that your standardized score is about 0.5.

d. Based on the standardized score in part c, about what proportion of the class scored higher than you did on the exam?

Reference no: EM131771685

Questions Cloud

Discuss purchases gross and uses a periodic inventory system : Purchased inventory from Encino Company on account for $44,800. Blue records purchases gross and uses a periodic inventory system

Review the six essential characteristics of change leaders : Review the six essential characteristics of change leaders commitment. Assess which attributes you possess and which attributes you wish to further develop.

What is the change in thermal energy : What is the change in thermal energy of the box and the slide?

Explain african mericancultures view of food : Explain African mericanculture's view of food (gratification, lack of discipline, etc.).

What proportion of the class scored higher : Based on the standardized score in part c, about what proportion of the class scored higher than you did on the exam?

What is the range for gre scores : Recall that GRE scores are approximately bell-shaped with a mean of 497 and standard deviation of 115. The minimum and maximum possible scores on the GRE exam.

Pendulum on earth : If the period of a simple pendulum is 1.68 seconds, and the pendulum has a length of 0.7 meters, is the pendulum on earth? Explain your answer.

Were forests cleared to make room for grazing herds : How much fuel was spent transporting these products across land and ocean? Were any pesticides used? If so, was it done in a sustainable fashion?

How you will use your current leadership skill set : Discuss how you will use your current leadership skill set to advocate for change in your workplace. Personal and professional accountability.

User Account

All Pages