To complete school you have to take standardized tests. Sometimes these multiple choice tests discourage guessing by subtracting points for wrong answers. In particular, a correct answer will be +1 and incorrect answer on a question with five listed answers (a through e) will be worth -1/4 point. (a) find the expected value for a random guess (B) find the expected value of eliminating one answer and guessing among the four remaining possible answers. (Enter an exact number as an integer, fraction or decimal) (c) find the expected value of eliminating three answers and guessing between the two remaining possible answers. (Enter an exact number as an integer, fraction of decimal.)

To complete school you have to take standardized tests. Sometimes these multiple choice tests discourage guessing by subtracting points for wrong answers. In particular, a correct answer will be +1 and incorrect answer on a question with five listed answers (a through e) will be worth -1/4 point. (a) find the expected value for a random guess (B) find the expected value of eliminating one answer and guessing among the four remaining possible answers. (Enter an exact number as an integer, fraction or decimal) (c) find the expected value of eliminating three answers and guessing between the two remaining possible answers. (Enter an exact number as an integer, fraction of decimal.)

Name: To complete school you have to take standardized tests. Sometimes thes
Uploaded: 2024-03-20T07:06:41.000Z
Channel: Bartleby
Description: To complete school you have to take standardized tests. Sometimes these multiple choice tests discourage guessing by subtracting points for wrong answers. In particular, a correct answer will be +1 and incorrect answer on a question with five listed

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

See similar textbooks

Similar questions

You buy a lottery ticket that costs $20. There are only 100 tickets available to be sold in this lottery. There are three $500 prizes, 4 $100 prizes, and 10 $20 prizes. Find your expected gain or loss. Round your answer to 2 decimal places. Please do not include the dollar sign in your answer (Ctrl) -
Please solve parts (a), (b), (c).
Recently a community college offered a 2-credit course to help students with math anxiety. At the beginning of the course, each student took a 30-question survey (called MARS-S); the higher the score, the more anxiety experienced by the student. The nine students remaining in the class took the same survey at the end of the course. The before and after scores for each of the nine students who completed the course are shown below, student before after 1 72 69 66 52 3 83 71 97 85 95 61 78 45 95 56 8. 52 43 93 62 Compute the correlation between before and after scores for these students. (Assu conditions have been satisfied and round your answer to the nearest 0.001.) the correlation Question Help: D Video O Message instructor Submit Question 目 Cip Co %23 24 96 & 4. 5 7 8. 9.
Now you play toss-a-coin. If the coin comes up Heads, you win. If it comes up Tails, your friend wins.What is the probability that you win 4 games out of 10 now? This is a numerical question - give the answer in percent, and round to four digits after the decimal point
As part of a sixth-grade class project the teacher brings to class a jar containing 200 gumballs of two different colors: red and green. Andy is asked to draw a sample of his own choosing and estimate the number of red gumballs in the jar. Andy draws a sample of 25 gumballs, of which 8 are red and 17 are green. Use Andy's sample to estimate the number of red gumballs in the jar. There are approximately Answer red gumballs in the jar.
Kelly’s batting average is .30 (they hit 3 out of every 10 pitches). Let’s assume there are 120 pitches thrown in the first 8 games. !. There is a 70% chance they should hit at least how many pitches this season? Round down for this answer.
Please answer the given statistics problem as soon as possible. Thank you!
You pay $20 to enter a raffle. The first ticket drawn wins $1036, the second ticket drawn wins $477, the third through fifth win $186, and the sixth through tenth win $49. Suppose 2345 tickets were sold. What is the expected earning on your ticket?
The 2004 General Social Survey asked a random sample of 977 adult Americans how often they feel rushed, with three options to choose from: always, sometimes, and never. The sample result was that 304 of the 977 people responded "always." Calculate the p value (four decimals)