
SR Week 8 Activity
Quiz
•
Mathematics
•
9th Grade
•
Hard
Sarah Pasmore
Used 3+ times
FREE Resource
Enhance your content in a minute
9 questions
Show all answers
1.
FILL IN THE BLANK QUESTION
1 min • 5 pts
For this problem, you have the population proportion of 0.28 and standard deviation of 0.02. What value is 2 standard deviations below the population proportion?
Answer explanation
2 standard deviation below the value would mean you want to multiply the STDEV by 2 and subtract it from the population proportion:
2*0.2 = 0.4; you want the value that is 0.4 below 0.28:
0.28 - 0.4 = 0.24
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
_______ is a part of a group being surveyed.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
_______ is the entire group of objects or individuals considered for a survey.
Sample
Random Sample
Population
Quartile
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
_________ is a sample in which each individual or object in the entire population has an equal chance of being selected.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
True or False: all samples lead to a good prediction about an entire population.
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A toy store owner wants to track how much kids spend each month on toys. He decides to sample the next 50 kids that make purchases at the store. Twenty kids spend over $25 on their purchases. Which choice best represents the population?
All the kids who buy toys
50 kids that make purchases
All kids
Twenty kids that spend over $25
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A mayor wanted to see if the people in their town thought they were doing a good job. They survey 1,000 adults living in their town to find that 65% think they are doing a good job. Which choice best represents the sample?
1,000
adults living in their town that are
over 65.
65%
of people that think they are doing a good job
All adults
of the town.
1,000
adults living in their town
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