Introduction to statistics
MILESTONE 1 RETAKE GUIDE
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Actual Questions & Verified Answers with Rationales
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, UNIT 1 — MILESTONE 1
28/29
28/29 that's 97% RETAKE
28 questions were answered correctly.
1 question was answered incorrectly.
1
●
A survey was conducted to find the frequency with which people go
to the movies. A group of 120 people in a mall were asked about
how often they go out for a movie and It was found that 36 people
go to movies at least once in a month.
Which of these is an example of descriptive statistics?
30% of the people surveyed in the
mall go to movies at least once in a
month.
30% of the people who reside in the
city go to movies at least once in a
●
month.
30% of the people who visited the
mall go to movies at least once in a
●
month.
30% of the people who reside in the
county go to movies at least once in
●
a month.
, RATIONALE
UNIT 1 — MILESTONE 1
Recall a descriptive statistic is a summary figure from a sample,
which is the information at hand. From this survey a statistic would 28/29
be 36 of 120 people or 30% go to the movies at least once in a
month.
CONCEPT
→ Statistics Overview
Report an issue with this question
2
●
A scientist is conducting a study on the effect of eating chocolate
and overall mood. They believe that gender is a significant factor.
The participants are divided by gender. Then, within each group,
participants are randomly assigned to consume either chocolate or
a placebo and then rate their mood for the day. This experiment will
run for two weeks.
Which type of experimental design does this situation describe?
Matched-Pair Design
●
Completely Randomized Design
●
Case-Control Design
●
Randomized Block Design
RATIONALE
Since people are first divided by gender and then are assigned
chocolate or placebo randomly, this is called a randomized block
design.
MILESTONE 1 RETAKE GUIDE
Sophia Learning Center
Actual Questions & Verified Answers with Rationales
100% Guarantee Pass
, UNIT 1 — MILESTONE 1
28/29
28/29 that's 97% RETAKE
28 questions were answered correctly.
1 question was answered incorrectly.
1
●
A survey was conducted to find the frequency with which people go
to the movies. A group of 120 people in a mall were asked about
how often they go out for a movie and It was found that 36 people
go to movies at least once in a month.
Which of these is an example of descriptive statistics?
30% of the people surveyed in the
mall go to movies at least once in a
month.
30% of the people who reside in the
city go to movies at least once in a
●
month.
30% of the people who visited the
mall go to movies at least once in a
●
month.
30% of the people who reside in the
county go to movies at least once in
●
a month.
, RATIONALE
UNIT 1 — MILESTONE 1
Recall a descriptive statistic is a summary figure from a sample,
which is the information at hand. From this survey a statistic would 28/29
be 36 of 120 people or 30% go to the movies at least once in a
month.
CONCEPT
→ Statistics Overview
Report an issue with this question
2
●
A scientist is conducting a study on the effect of eating chocolate
and overall mood. They believe that gender is a significant factor.
The participants are divided by gender. Then, within each group,
participants are randomly assigned to consume either chocolate or
a placebo and then rate their mood for the day. This experiment will
run for two weeks.
Which type of experimental design does this situation describe?
Matched-Pair Design
●
Completely Randomized Design
●
Case-Control Design
●
Randomized Block Design
RATIONALE
Since people are first divided by gender and then are assigned
chocolate or placebo randomly, this is called a randomized block
design.
