1. Based on the boxplot, it is implied that the distribution of the commute time in minutes for the sampled residents who live in Los Angeles is bell-shaped.
-
True
-
False
2. For the residents in New York City, 25% reported a commute time of at least __________ minutes.
-
50
-
40
-
36
-
30.5
-
20
-
23
3. If none of the residents in NYC reported a commute time of exactly 30.5 minutes, how many of the 40 residents in NYC that pariticipated in this study reported a commute time of more than 30.5 minutes?
-
10
-
20
-
30
-
40
Homework Answers
1. Based on the boxplot, it is implied that the distribution of the commute time in minutes for the sampled residents who live in Los Angeles is bell-shaped.
The correct option is "True" .
Because the median line is approximately in the middle of the first and the third quartiles.
2. For the residents in New York City, 25% reported a commute time of at least __________ minutes.
Here correct option is 40
Because the right area from third quartile = 25% and here we want to get at least 25% data set.
3. If none of the residents in NYC reported a commute time of exactly 30.5 minutes, how many of the 40 residents in NYC that participated in this study reported a commute time of more than 30.5 minutes?
The correct option is 30
Because 75% of the total residents reported a commute time of more than 30.5 minutes that is from first quartile.
So that , required number of residents = 0.75*40 = 30
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