AnswersConcepts in Probability and Statistics ARepresenting Data Sets with Histograms

Representing Data Sets with Histograms Answers

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Liliana noted that the temperature was 45 degrees when she woke up. At noon she started recording the increase in degrees from the morning temperature. Which statement most reasonably explains the hours after the peak increase in temperature?

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A
The temperature always rises after a peak.
B
The temperature increase went down because the thermometer’s battery was losing power.
C
The temperature increase went down because it became cooler as the sun went down for the night.
D
The temperature rose after the peak when the sun came out from behind a cloud bank.
2
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Miguel made a histogram to show the ages of all the participants involved in a fund-raiser. Which part of the histogram did Miguel forget to create?

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A
Miguel forgot to choose the intervals.
B
Miguel forgot to create the frequency table.
C
Miguel forgot to create the title.
D
Miguel forgot to put spaces between the bars.
5

The histogram shows the number of cell phone calls received by Medera, a middle school student, one Saturday from 10 a.m. to 10 p.m. Which statement most reasonably explains the hours when zero calls were received?

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A
Medera turned the phone off while playing in a soccer game.
B
Medera’s phone can only receive 22 calls a day.
C
Medera only receives calls in clusters.
D
Medera lost her phone for two hours.
7

Which statement about histograms is true?

A
Data is organized in categories.
B
Data appears as bars that are all about the same height.
C
Data is organized in equal intervals.
D
Data appears as bars that do not touch.
10

Henry took a survey to determine how many rooms were in each house in his neighborhood. He created the histogram from his data.What is the range of rooms in Henry’s histogram?

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A
The houses surveyed had between 1 and 10 rooms.
B
The histogram shows a range of 5 to 6 rooms.
C
The houses surveyed had between 0 and 6 rooms.
D
The histogram shows a range of 1 to 5 rooms.
11

The histogram represents the time it takes employees to get to work each morning.Which statement correctly describes the data?

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A
The data is skewed left because the time it takes employees to get to work tails off to the left.
B
The data is skewed left because the time it takes employees to get to work tails off to the right.
C
The data is skewed right because the time it takes employees to get to work tails off to the right.
D
The data is skewed right because the time it takes employees to get to work tails off to the left.
14

Which statement about a histogram is true?

A
A cluster means the frequency is zero.
B
If the graph has a cluster, the data is evenly distributed.
C
A mirror image of the left and right side of a histogram means there is a peak in the middle.
D
A peak is a bar that is higher than the other bars around it.
15

Johanna graphed the number of calls she made during one day. How many calls were made before 6 p.m.? [BLANK]

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