Have an account?
Skip to Content
Build your own quiz
Suggestions for you
25 questions
Show Answers
See Preview
- 1. Multiple Choice
Who is the best athlete?Tiger WoodsTom BradyVenus WilliamsWe can't really tell because they all play different sports. - 2. Multiple ChoiceStatistics gives us a way to compare events that are measured differently. Which of the following is an example of events that are measured differently?Jess' test score vs. Mia's test scorePayton Manning's pass completion vs. Aaron Rodgers pass completionQuin's ACT score vs. Jake's SAT scoreMy Fitbit steps (lol) vs. Ms. Kladis' Fitbit steps
- 3. Multiple ChoiceIn order to compare, we can "standardize" the scores. This means we are going to convert the scores to a "third party" measure called a Z-score.
What does standardize mean?Convert to a z-scoreMake me take a testsomething about the common coreno clue - 4. Multiple ChoiceHopefully you answered
"z-score".
A z-score tells us how many standard deviations a score is from the mean.
What is another word for "mean"?nastyaveragemediangood looking - 5. Multiple ChoiceBy the way, what is standard deviation?good questionhow standardly something deviatesaverage distance that data points are from the averageIdk but I should probably find out pretty soon
- 6. Multiple ChoiceStandard deviation tells us how spread out a symmetric distribution is.
Since a Z-score tells us how many standard deviations away from average something is, what does a high Z-score mean?It's way higher than averagetl:dryou're in trouble?you need a doctor - 7. Multiple ChoiceAdam's Z-score on a test is +2.5. What does this mean?He'd better start studying.He did better than EVERYONE.He scored 2.5 standard deviations above the average.He did terrible.
- 8. Multiple ChoiceJoanne's Z-score is -1.5. What does this mean?She didn't take the test yet.She scored 1.5 standard deviations below the average.She did better than most people.No clue
- 9. Multiple ChoiceZ-scores are calculated by subtracting the mean from the score and then dividing by the standard deviation. Which of the following is a formula that describes this calculation?Z = (score - mean) / stand. devationZ = (mean - score) / stand. dev.Z = score/stand. dev/ meanZ = dragonball
- 10. Multiple ChoiceIf Gonzalo's score is 87, the class average is 82, and the SD is 4, what is Gonzalo's Z-score?-1.25+1.25+1.20+1.02
- 11. Multiple ChoiceWhat does this Z-score (hopefully you answered +1.25) imply about his performance?AverageBetter than averageWorse than averageIt was better than everyone else's.
- 12. Multiple ChoiceJill's Z-score on the same test was a +3.0. (average was 82 and SD was 4).
What was her actual score?85 %79 %94 %40 % - 13. Multiple ChoiceLet's go back to the ACT vs. the SAT.
How can we tell who "did better" between someone who got a 31 on the ACT and someone who got 1400 on the SAT?Random guess?1400 is higher so it's betterFind the Z-scores!Flip a coin? - 14. Multiple ChoiceWhat is the Z-score for Tina if she got a 31 on the ACT, the mean was 23 and the SD was 4?+0.2+2.0-2.0-0.2
- 15. Multiple ChoiceWhat is the Z-score for Paula if she got 1400 on the SAT, the mean was 1100 and the SD was 275?-1.90-1.09+1.09+1.90
- 16. Multiple ChoiceSo if Tina's Z-score is +2.0 and Paula's Z-score is +1.09, who performed better?Tina's performance is farther away from the mean so she did better.Paula's score is closer to the mean so she did better.They both did the same.Can I take a nap now?
- 17. Multiple ChoiceMore practice: At a recent invitational, Emmett threw the shotput 43.5 feet with an invite mean of 41 and a SD of 3.
Reese ran the 800 in 2 minutes, 1 second with the mean being 2 minutes 46 seconds and SD of 15 seconds.
What were their Z-scores and who performed better?Emmett's Z-score was +0.83, Reese's was -3.0. Emmet did betterEmmett's Z-score was +0.83, Reese's was -3.0 but Reese did better because in track, lower times are better to haveThey're both pretty litMaddie R. can smoke both of 'em. - 18. Multiple ChoiceYour latest test score had an average of 80 with a SD of 8 points.
If you got a 96, what is your Z-score?-2.016%+2.0pi - 19. Multiple ChoiceOn the same test, your best friend got a 76. (Mean = 80, SD = 8)
What's her Z-score?0.5-0.5 - 20. Multiple ChoiceWhat test score (mean = 80, SD = 8) resulted in a Z-score of +1.5?92%72%I didn't even need the formula for this one.I should be able to click 2 boxes
- 21. Multiple ChoiceKellogg's cereal has an average of 7.6 g of sugar with an SD of 4.5g.
What is the Z-score of Frosted Flakes if it has 11g sugar?+0.76-0.74+0.68eww, Frosted Flakes - 22. Multiple ChoiceCrispix has 3g of sugar. What is the z-score? (mean = 7.6, SD = 4.5)+1.02-1.02-0.76Even 'ewwer than FF
- 23. Multiple ChoiceHoney Smacks have a Z-score of 3.87.
How many grams of sugar are there?
(mean = 7.6, SD = 4.5)25.015 g18.014 g10.47 gIdk but that's a whole lotta sugar! - 24. Multiple ChoiceYour teacher has told you that she will drop your "worst" test.
On Test 1 you scored 90 (mean=88, SD = 4)
On Test 2 you scored 88 (mean=79, SD=3)
Which test was "worse"?Test 1Test 2They were the same. - 25. Multiple ChoiceIn the previous situation, the z-scores were +0.5 and +3.0. Since your second test was considerably better than average, it's your "better" test.Yeah, I got thatOh, I was wondering how that went
- Answer choicesTagsAnswer choicesTags