Questions from Statistics

Q: A dotplot of the glucose readings from 132 people (from NHANES

A dotplot of the glucose readings from 132 people (from NHANES) is shown. Some doctors recommend that glucose readings not be above 120 mg/dl. a. How many of these people have glucose readings above 1...

Q: The histogram shown is for pulse rates for125 people. Convert the

The histogram shown is for pulse rates for125 people. Convert the vertical axis to relative frequency and show the value that would replace each of the values on the vertical axis. (Source: NHANES)

Q: The histogram shown is for number of calories in a sample of

The histogram shown is for number of calories in a sample of fast-food items. (Source: Stat Crunch survey). a. What is the bin width of the histogram? b. Would this graph be best described as unimodal...

Q: The resting pulse rates (in beats per minute) of a

The resting pulse rates (in beats per minute) of a sample of 91 undergraduate students were recorded. The data are displayed in the following histogram and dotplots. Based on these graphs, would you c...

Q: Emmanuel, a student at a Los Angeles high school, kept

Emmanuel, a student at a Los Angeles high school, kept track of the calorie content of all the snacks he ate for one week. He also took note of whether the snack was mostly “sweet” or “salty.” The swe...

Q: A post office branch recorded the number of customers served per day

A post office branch recorded the number of customers served per day for a period of time. The data are displayed in the following histogram and dotplot. Based on these graphs, would it be unusual for...

Q: According to the World Health Organization (WHO), there are five

According to the World Health Organization (WHO), there are five leading causes of preventable deaths in the world. They are shown in the following graph. a. Estimate how many preventable deaths resul...

Q: Suppose a group of school-aged children is asked, “

Suppose a group of school-aged children is asked, “Which of these three ice cream flavors do you like the most: vanilla, chocolate, or strawberry?” Describe a bar graph of their responses that would h...

Q: Applicants to California community colleges are asked to indicate one of these

Applicants to California community colleges are asked to indicate one of these education goals at the time of application: transfer to a four-year institution, an AA degree, a CTE certificate, job ret...

Q: Pew Research conducted a survey in 2017 asking gun owners what percentage

Pew Research conducted a survey in 2017 asking gun owners what percentage of time they had a loaded gun easily within reach when at home. The results for male gun owners are displayed in a bar chart a...