After class, you meet with your friend who scored 0.32 standard deviations below the mean on the same test that you scored 0.71 standard deviations above the mean. What proportion of students scored between your two scores?

What will be an ideal response?


(i) 38.66%; (ii) From the prior problem, you know that the probability associated with a z-score of 0.71 is 0.2611. Knowing that the probability of being below the mean is 0.5000, you find the probability associated with your friend’s z-score of -0.32: P(z=-0.32)=0.1255. Given that you want to determine the probability of being in the range between each z-score and the mean, you add 0.2611 and 0.1255.

Political Science

You might also like to view...

According to the text, what aspect of American political culture likely presented the biggest obstacle in the passage of the Affordable Care Act in 2010?

A. collectivism B. distrust of government C. societal responsibility to care for all D. unwillingness to help those who deserve it

Political Science

Which of the following is a confrontational approach the president can take with regard to Congress?

a. Veto threats b. Cross-party coalitions c. Sending Congress draft administration bills d. State of the Union address

Political Science

Income from investments, called capital gains, are taxed at a lower rate than income from employment

Indicate whether the statement is true or false

Political Science

A __________ is one tactic to signal the leadership that a Senate member may have objections to a bill

a. cloture b. hold c. markup d. pocket veto

Political Science