Heraldo surveyed a group of people and asked them how many tattoos they had. His results are represented in the circle graph. What percentage of people responded with 1–2? Express the answer as a decimal, and round to the nearest tenth.

A pie chart shows the following distribution: 1 to 2, 35; 3 to 4, 18; 5 to 6, 13; 7 plus, 11. Each segment of the pie chart shows a different pattern.

7 answers

To find the percentage of people who responded with 1-2 tattoos, we need to add up the number of people who fell in the 1-2 category. In this case, it is 35 people.

Next, we need to calculate the total number of people surveyed. Adding up all the numbers in the chart, we get 35 (1-2 tattoos) + 18 (3-4 tattoos) + 13 (5-6 tattoos) + 11 (7+ tattoos) = 77 people.

To find the percentage of people who responded with 1-2 tattoos, we divide the number of people with 1-2 tattoos by the total number of people surveyed and multiply by 100 to get the percentage:
(35 / 77) * 100 = 45.5%

Therefore, the percentage of people who responded with 1-2 tattoos is 45.5%, rounded to one decimal place as 45.5%.
The circle graph represents the breakdown of metals in a Jefferson nickel. Each category is represented as a percentage of the total volume of the coin. What percentage of the Jefferson nickel is made up of silver?

A circle graph is divided into 3 sections. The value for copper is 56 percent. The value for manganese is 9 percent. The section labeled silver is not assigned a percentage value.
To find the percentage of the Jefferson nickel that is made up of silver, you need to sum up the percentages of copper and manganese and then subtract that total from 100% since the circle graph represents the total volume of the coin.

Copper: 56%
Manganese: 9%

Total of copper and manganese: 56% + 9% = 65%

Percentage of the Jefferson nickel that is made up of silver: 100% - 65% = 35%

Therefore, 35% of the Jefferson nickel is made up of silver.
monday | 64 oz
tuesday | 50 oz
wednesday | 60 oz
thursday | 54 oz
friday | 39 oz
saturday | 66 oz
sunday | ? oz

Daniela is logging her water consumption for each day of the week in the table.

She is representing these data on a bar graph, where the x -axis is the day of the week and the y -axis is the number of ounces of water consumed. If she drank a total of 381 oz. of water for the whole week, how tall should the Sunday bar be on her graph?
To find out how many ounces of water Daniela drank on Sunday, we need to subtract the total amount of water she drank during the previous six days from the total for the whole week.

Total amount drank from Monday to Saturday: 64 oz + 50 oz + 60 oz + 54 oz + 39 oz + 66 oz = 333 oz
Total for the whole week: 381 oz

Amount drank on Sunday = Total for the whole week - Total from Monday to Saturday
Amount drank on Sunday = 381 oz - 333 oz
Amount drank on Sunday = 48 oz

Therefore, she drank 48 oz on Sunday, and the Sunday bar on her graph should be 48 units tall.
Ms. Gomez is surveying her coworkers to see how many cups of coffee they drink per day. She collected the following responses:

0,2,1,2,3,0,1,5,3,4,2,1,1,1,3,2,2,0,2,0,1

If she represents these data in a histogram, how tall would the bar representing the frequency of people who responded 2–3?
To find the frequency of people who responded with 2-3 cups of coffee per day, we need to count how many times 2 or 3 appears in the responses.

Responses: 0, 2, 1, 2, 3, 0, 1, 5, 3, 4, 2, 1, 1, 1, 3, 2, 2, 0, 2, 0, 1

Number of times 2 appears: 5
Number of times 3 appears: 3

Total frequency of people who responded with 2-3 cups of coffee per day: 5 (responded with 2) + 3 (responded with 3) = 8

Therefore, the bar representing the frequency of people who responded with 2-3 cups of coffee per day would be 8 units tall in the histogram.