2. Researchers at Jackson Hospital asked 40 randomly selected patients about their sleep habits. Sixteen reported sleeping 8 hours or more each night. If their are 700 patients in the hospital, estimate the number of patients who sleep 8 hours or more each night. A.140
B.160
C.180
D.280<--------
16/40 = x/700
2/5 = x/700
x = 1400/5 = 280
the answers above are not correct. I got a 4/17
Nvm there wrong
are they wrong
Researchers at Jackson Hospital asked 40 randomly selected patients about their sleep habits. Sixteen reported sleeping 8 hours or more each night. If there are 700 patients in the hospital, estimate the number of patients who sleep 8 hours or more each night. - D. ๐ฎ๐ด๐ฌ
A sports reporter said that 2 out of every 3 people he talked to at a hometown baseball game named baseball as their favourite sport. The reporter claimed that baseball was the most popular sport in town. Which of the following explains why the reporter's claim might not be true? - B. ๐ง๐ต๐ฒ ๐ฟ๐ฒ๐ฝ๐ผ๐ฟ๐๐ฒ๐ฟ ๐ผ๐ป๐น๐ ๐๐ฎ๐น๐ธ๐ฒ๐ฑ ๐๐ผ ๐ฝ๐ฒ๐ผ๐ฝ๐น๐ฒ ๐ฎ๐ ๐ฎ ๐ฏ๐ฎ๐๐ฒ๐ฏ๐ฎ๐น๐น ๐ด๐ฎ๐บ๐ฒ.
Which of the following types of information is suited for display on a double line graph? - D. ๐ฎ๐น๐น ๐ผ๐ณ ๐๐ต๐ฒ๐๐ฒ ๐ฎ๐ป๐๐๐ฒ๐ฟ๐
The stem-and-leaf plot below shows the number of miles run by members of the cross-country team. How many students ran more than 27 miles? - D. ๐ต
Which survey question is biased? - D. ๐ช๐ต๐ถ๐ฐ๐ต ๐ฑ๐ผ ๐๐ผ๐ ๐น๐ถ๐ธ๐ฒ ๐ฏ๐ฒ๐๐๐ฒ๐ฟ, ๐ฐ๐ผ๐ณ๐ณ๐ฒ๐ฒ ๐ผ๐ฟ ๐ณ๐ฟ๐ฒ๐๐ต, ๐๐ฎ๐๐๐ ๐๐ฎ๐๐ฒ๐ฟ?
Game wardens use experiments to help determine the number of fish in a lake. Suppose 80 fish are caught, tagged, and released back into the lake. Two weeks later 120 fish are caught, 3 of which are found to have tags. Using this information, estimate the number of fish in the lake. - A. ๐ฏ,๐ฎ๐ฌ๐ฌ
The table shows the relationship between the number of roller coasters ridden at the fair and the amount spent at the fair. Graph the data in a scatter plot and describe the trend shown by the graph. - C. ๐ง๐ต๐ฒ ๐๐ฐ๐ฎ๐๐๐ฒ๐ฟ ๐ฝ๐น๐ผ๐ ๐๐ต๐ผ๐๐ ๐ฎ ๐ฝ๐ผ๐๐ถ๐๐ถ๐๐ฒ ๐๐ฟ๐ฒ๐ป๐ฑ. ๐๐ ๐๐ต๐ฒ ๐ป๐๐บ๐ฏ๐ฒ๐ฟ ๐ผ๐ณ ๐ฟ๐ผ๐น๐น๐ฒ๐ฟ ๐ฐ๐ผ๐ฎ๐๐๐ฒ๐ฟ๐ ๐ถ๐ป๐ฐ๐ฟ๐ฒ๐ฎ๐๐ฒ๐, ๐๐ต๐ฒ ๐๐ผ๐๐ฎ๐น ๐ฐ๐ผ๐๐ ๐ถ๐ป๐ฐ๐ฟ๐ฒ๐ฎ๐๐ฒ๐.
James drew a scatter plot comparing the number of people who bought tickets to middle school football games and the amount of money raised by the events. He graphed the ordered pairs (number of tickets, money raised) for each date of the football games. Which of the three scatter plots below most likely represent the data? - A. (๐๐ต๐ฒ ๐ผ๐ป๐ฒ ๐๐ถ๐๐ต ๐ฎ ๐ฝ๐ผ๐๐ถ๐๐ถ๐๐ฒ ๐๐ฟ๐ฒ๐ป๐ฑ)
Katie surveyed people at a grocery store. She wanted to find out which animals were their favourite pets. She asked the people she surveyed which animal they thought was the least expensive to feed. The results are shown in the bar graph below. - C. ๐ง๐ต๐ฒ ๐น๐ฒ๐ฎ๐๐ ๐ฒ๐
๐ฝ๐ฒ๐ป๐๐ถ๐๐ฒ ๐ฎ๐ป๐ถ๐บ๐ฎ๐น ๐๐ผ ๐ณ๐ฒ๐ฒ๐ฑ ๐บ๐ฎ๐ ๐ป๐ผ๐ ๐ฏ๐ฒ ๐๐ต๐ฒ ๐ณ๐ฎ๐๐ผ๐๐ฟ๐ถ๐๐ฒ ๐ฎ๐ป๐ถ๐บ๐ฎ๐น ๐ณ๐ผ๐ฟ ๐ฎ ๐ฝ๐ฒ๐.
The table shows Christineโs best javelin throws each year. Make a scatter plot that represents the given data. - B.
Jake recorded the average temperatures for his hometown over a period of 20 days as shown in the chart. He used the data to determine the mean temperature. In a report, he stated, โThe typical temperature in my hometown is about 61ยฐ.โ How is this statement misleading? - D. ๐ง๐ต๐ฒ ๐บ๐ฒ๐ฎ๐ป ๐ถ๐ ๐ป๐ผ๐ ๐ฎ ๐ด๐ผ๐ผ๐ฑ ๐บ๐ฒ๐ฎ๐๐๐ฟ๐ฒ ๐ผ๐ณ ๐๐ต๐ฒ ๐๐๐ฝ๐ถ๐ฐ๐ฎ๐น ๐๐ฒ๐บ๐ฝ๐ฒ๐ฟ๐ฎ๐๐๐ฟ๐ฒ ๐ฏ๐ฒ๐ฐ๐ฎ๐๐๐ฒ ๐ฎ ๐ณ๐ฒ๐ ๐ต๐ถ๐ด๐ต๐ฒ๐ฟ ๐๐ฒ๐บ๐ฝ๐ฒ๐ฟ๐ฎ๐๐๐ฟ๐ฒ๐ ๐ฝ๐๐น๐น ๐๐ต๐ฒ ๐บ๐ฒ๐ฎ๐ป ๐ต๐ถ๐ด๐ต๐ฒ๐ฟ ๐๐ต๐ฎ๐ป ๐บ๐ผ๐๐ ๐ผ๐ณ ๐๐ต๐ฒ ๐ฑ๐ฎ๐ถ๐น๐ ๐๐ฒ๐บ๐ฝ๐ฒ๐ฟ๐ฎ๐๐๐ฟ๐ฒ๐.
A transportation researcher decided to record the number of miles that employees of a large company drove to work each day. The frequency table below displays the data. Which histogram represents the data? - A.
Which is the best display for the set of the number of daily 911 calls made during a month, if you want to be able to identify the mode? - C. ๐น๐ถ๐ป๐ฒ ๐ฝ๐น๐ผ๐
Joan asked 30 randomly selected adult restaurant customers about their choice of beverages. Eighteen customers said coffee is their favourite beverage. If the restaurant serves 200 adult customers per day, estimate the number who will choose coffee to drink. - C. ๐ญ๐ฎ๐ฌ
The table shows the rainfall, in inches, in the month of July for the years 2006 through 2011. Alex used the data to make the graph below. - ๐ง๐ต๐ฒ ๐ด๐ถ๐๐ฒ๐ป ๐ด๐ฟ๐ฎ๐ฝ๐ต ๐ถ๐ ๐ฎ ๐น๐ถ๐ป๐ฒ ๐ด๐ฟ๐ฎ๐ฝ๐ต, ๐ฟ๐ฒ๐ฝ๐ฟ๐ฒ๐๐ฒ๐ป๐๐ ๐ถ๐ป๐ฐ๐ฟ๐ฒ๐ฎ๐๐ถ๐ป๐ด ๐ฎ๐ป๐ฑ ๐ฑ๐ฒ๐ฐ๐ฟ๐ฒ๐ฎ๐๐ถ๐ป๐ด ๐ฟ๐ฎ๐ถ๐ป๐ณ๐ฎ๐น๐น ๐ถ๐ป ๐๐ถ๐
๐ฑ๐ถ๐ณ๐ณ๐ฒ๐ฟ๐ฒ๐ป๐ ๐๐ฒ๐ฎ๐ฟ๐.
๐ง๐ต๐ฒ ๐ด๐ถ๐๐ฒ๐ป ๐ด๐ฟ๐ฎ๐ฝ๐ต ๐บ๐ถ๐๐น๐ฒ๐ฎ๐ฑ๐ ,๐ถ๐ป ๐๐ฒ๐ฟ๐บ๐ ๐ผ๐ณ ๐น๐ฒ๐ป๐ด๐๐ต, ๐๐ต๐ฒ๐ป ๐ฎ๐บ๐ผ๐๐ป๐ ๐ผ๐ณ ๐ฟ๐ฎ๐ถ๐ป๐ณ๐ฎ๐น๐น(๐ฐ.๐ฒ-๐ฏ.๐ต) ๐ถ๐ ๐ฝ๐น๐ผ๐๐๐ฒ๐ฑ ๐๐ถ๐๐ต ๐๐ถ๐
๐ฑ๐ถ๐ณ๐ณ๐ฒ๐ฟ๐ฒ๐ป๐ ๐๐ฒ๐ฎ๐ฟ๐(๐ฎ๐ฌ๐ฌ๐ฒ-๐ฎ๐ฌ๐ญ๐ญ).
๐ช๐ต๐ฒ๐ป ๐ฟ๐ฎ๐ถ๐ป๐ณ๐ฎ๐น๐น ๐ฑ๐ฒ๐ฐ๐ฟ๐ฒ๐ฎ๐๐ฒ๐ ๐ณ๐ฟ๐ผ๐บ ๐ฐ.๐ฑ ๐๐ผ ๐ฐ.๐ฐ, ๐๐ต๐ฒ ๐ฑ๐ฒ๐ฐ๐ฟ๐ฒ๐ฎ๐๐ฒ , ๐ถ๐ป ๐น๐ฒ๐ป๐ด๐๐ต ๐ผ๐ณ ๐ฟ๐ฒ๐ฐ๐๐ฎ๐ป๐ด๐น๐ฒ ๐ถ๐ ๐น๐ฒ๐๐, ๐๐ต๐ผ๐๐น๐ฑ ๐ฏ๐ฒ ๐ฒ๐พ๐๐ฎ๐น, ๐ถ๐ป ๐ฐ๐ผ๐บ๐ฝ๐ฎ๐ฟ๐ถ๐๐ผ๐ป ๐๐ผ ๐๐ต๐ฒ๐ป ๐๐ฒ๐ฎ๐ฟ ๐ถ๐ป๐ฐ๐ฟ๐ฒ๐ฎ๐๐ฒ๐ ๐ณ๐ฟ๐ผ๐บ ๐ฎ๐ฌ๐ฌ๐ฒ ๐๐ผ ๐ฎ๐ฌ๐ฌ๐ณ. ๐๐ ๐บ๐๐๐ ๐ฏ๐ฒ ๐ถ๐ป ๐๐ต๐ฒ ๐๐ต๐ฎ๐ฝ๐ฒ ๐ผ๐ณ ๐ฆ๐พ๐๐ฎ๐ฟ๐ฒ.
๐๐ณ ๐ถ๐ป๐๐๐ฒ๐ฎ๐ฑ ๐ผ๐ณ ๐น๐ถ๐ป๐ฒ ๐ด๐ฟ๐ฎ๐ฝ๐ต, ๐๐ฒ ๐๐ถ๐น๐น ๐ฑ๐ฟ๐ฎ๐ ๐ฏ๐ฎ๐ฟ ๐ด๐ฟ๐ฎ๐ฝ๐ต ,๐ฟ๐ฒ๐ฝ๐ฟ๐ฒ๐๐ฒ๐ป๐๐ถ๐ป๐ด ๐๐บ๐ผ๐๐ป๐ ๐ผ๐ณ ๐ฟ๐ฎ๐ถ๐ป๐ณ๐ฎ๐น๐น(๐ฐ.๐ฑ-๐ฏ.๐ฌ) ๐ผ๐ป ๐ ๐ฎ๐
๐ถ๐ ๐ถ๐ป ๐๐ต๐ฒ ๐บ๐ผ๐ป๐๐ต ๐ผ๐ณ ๐๐๐น๐, ๐๐ผ ๐ฒ ๐ฑ๐ถ๐ณ๐ณ๐ฒ๐ฟ๐ฒ๐ป๐ ๐๐ฒ๐ฎ๐ฟ๐ ๐ณ๐ฟ๐ผ๐บ (๐ฎ๐ฌ๐ฌ๐ฒ-๐ฎ๐ฌ๐ญ๐ญ) ๐ผ๐ป ๐
๐ฎ๐
๐ถ๐, ๐ ๐๐ต๐ถ๐ป๐ธ ๐ถ๐ ๐๐ถ๐น๐น ๐ฏ๐ฒ ๐น๐ฒ๐ฎ๐๐ ๐บ๐ถ๐๐น๐ฒ๐ฎ๐ฑ๐ถ๐ป๐ด.