Chapter 3 Test Review-Statistics

Irene is tracking her daily calorie intake to maintain a healthy diet. Over the course of a week, she consumes 1600 calories on Monday, 1550 on Tuesday, 1700 on Wednesday, 1620 on Thursday, 1680 on Friday, 1750 on Saturday, and 1800 on Sunday. What is her average daily calorie intake for the week?

• 1,600 calories

• 1,657 calories

• 1,700 calories

• 1,750 calories

Over the past month, the price of a different commodity had the following end of day prices according to the table given below. What was the mean commodity price over this period?

• $36.82

• $35.82

• $40.12

• $38.50

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CCSS.HSS.ID.A.2

The class scores on a quiz are 88, 92, 79, 85, and 91. What is the median score?

• 88

• 85

• 91

• 89

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CCSS.HSS.ID.A.2

What is the purpose of a quantile in data analysis?

• To divide data into equal-sized intervals

• To group data into quartiles

• To measure the central tendency of data

• To group data by its mean value

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CCSS.HSS.ID.A.3

Given a decile cut point value of 15.7, where the sixteenth sequential value is 50 and the seventeenth value is 60, what is the actual decile value?

• 55.0

• 50.0

• Cannot be determined from the data provided

• 57.0

What is the frequency distribution pattern of data that has been grouped into quartiles?

• It is centered around 4

• It is symmetric around 4

• It is flat

• It is increasing linearly

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CCSS.HSS.ID.A.2

CCSS.HSS.ID.A.3

Select the word or phrase that best completes the sentence: When calculating the median, if the position is not a ____, round it to the nearest whole number and find the corresponding value in the ordered data set.

• decimal

• percentile

• whole number

• fraction

Jonathan knows he scored in the 75th percentile on his psychology test. The professor gives the students the following list of grades (without names): 45, 67, 89, 91, 72, 84, 77, 95, 88, 79, 93. Assuming that there are 11 students in the class, what was Jonathan's test score?

• 89

• 77

• 95

• 72

• 93

Which measure represents the value below which a given percentage of observations in a group of observations fall?

• Standard Deviation

• Percentile

• Median

• Mode

• Quartile

During the first four Winter Olympic games attended by the United States, these medal counts were awarded. Calculate the median number of medals won during these Olympic Games.

• 47

• 239

• 88.25

• no median

Tags

CCSS.HSS.ID.A.2