Describing and Comparing Data with Histograms — Unit test

Question 1

A student collected data on the size of coffee chosen by customers at a convenience store, and whether the customers took their coffee with sugar, cream, or both. Size of Coffee SmallMediumLargeTotalCoffee AdditiveCream8152144Sugar481123Both15234280 Total274674147What percentage of customers chose a medium-sized coffee?

Revolt · Accepted Answer

31.3%

Question 2

Brand A and brand B of frozen green beans both list a weight of 32 ounces on their bags. Because of variability in the manufacturing process, the bags often contain slightly more, or less, than 32 ounces of green beans. An inspector takes a random sample of 25 bags of green beans of each type and records their weights. The weights and their relative frequencies are summarized in the histograms.

Revolt · Accepted Answer

The median weight for brand B is less than the median weight of brand A.

Question 3

People of different ages were asked the question "Do you listen to audiobooks?” The bar graph below displays the percentage of "yes” responses for different age groups.

Revolt · Accepted Answer

Yes, because the scale does not start at 0.

Question 4

A website lists homes for sale in a suburban town. The site provides information including neighborhood, selling price, number of bedrooms, and whether the home has a garage. What are the individuals in this setting?

Revolt · Accepted Answer

homes

Question 5

A school administrator asks each student if they participate in a sport and if they participate in a club. The results are shown below. Participates in a Sport YesNoTotalParticipates in a ClubYes6204501070No325535860 Total9459851930What percentage of students do not participate in a sport?

Revolt · Accepted Answer

51.0%

Question 6

The stemplot displays 26 students’ scores on a 90-point statistics test.

Revolt · Accepted Answer

77%

Question 7

A brand of frozen green beans lists a weight of 32 ounces on its bag. Because of variability in the manufacturing process, the bags often contain slightly more, or less, than 32 ounces of green beans. An inspector takes a random sample of 25 bags of green beans and records their weights. The weights and their relative frequencies are summarized in the histogram below.

Revolt · Accepted Answer

32.2–32.3 ounces

Question 8

An indoor running track is 200 meters in length. During a 3,000-meter race, runners must complete 15 laps of the track. An electronic timing device records the time it takes each runner to complete a lap for every lap in the race. These are called lap times. The histogram below displays the lap times for Stefano, a runner in the 3,000-meter race.

Revolt · Accepted Answer

There were no lap times between 35 and 36 seconds.

Question 9

The stemplot displays 26 students’ scores on a 90-point statistics test.

Revolt · Accepted Answer

The scores on the test are centered around 66 and vary from 43 to 85.

Question 10

A golf course has 18 holes. A guidebook provided to golfers includes useful information about each hole. The individuals in this data set are shown below.

Revolt · Accepted Answer

difficulty level

Describing and Comparing Data with Histograms — Unit test Answers

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