Use the frequency distribution to determine ​a) the total number of observations. ​b) the width of each class. ​c) the midpoint of the second class.

Select the correct answer and write the appropriate letter in the space provided _____ 1. A grouping of data into classes giving the number of observations in each class is called a(an)   a bar chart.   b. frequency distribution.   c. pie chart.    d. cumulative frequency distribution.   ______ 2. The distance between consecutive lower class limits is called the   a. class interval.   b. frequency distribution.   c. class midpoint.   d. class frequency.   ______ 3. The class midpoint is   a. equal to the number of observations.   b. found by adding the lower class limits of two consecutive classes and dividing by 2.   c. equal to the class interval.   d. all of the above.   ______ 4. The number of observations in a particular class is called the    a. class interval.   b. class frequency.   c. frequency distribution.   d. none of the above.   ______ 5. A bar chart is used most often when   a. you want to show frequencies as compared to total observations.   b. you want to show…

Ten cyclists were each asked the distance in miles they biked last week. Their responses are given below. Complete the grouped frequency distribution for the data. In the distribution, the frequency of a class is the number of distances in that class. (Note that we are using a class width of 5.) Distance in miles Distance in miles Frequency ✗ 10 14 17 9 3 1 to 5 ☐ 14 20 14 9 15 6 to 10 11 to 15 16 to 20

Fourteen different second-year medical students at a hospital measured the blood pressure of the same person. The systolic readings (mm Hg) are listed below. Use the given data to construct a boxplot and identify the 5-number summary. 135 120 131 125 O A. 138 O C. The 5-number summary is ☐☐☐☐, and all in mm Hg. (Use ascending order. Type integers or decimals. Do not round.) Which boxplot below represents the data? 120 120 130 129 Blood 140 sure (mm Hg) 130 140 Blood Pressure (mm Hg) 150 150 Q Q 125 Q 130 ... OB. O D. 150 120 120 143 126 140 130 Blood Pressure (mm Hg) 130 140 Blood Pressure (mm Hg) 140 150 150 126 150 D₂₁

s) For the frequency distribution below, draw a graph which would be appropriate. Birth-Order Position First born 10 Second born 5 Third born 8. Fourth born 3 Fifth and later born 3

Using 6 classes of width 50 starting at 100, construct a frequency distribution for the following numbers. 253   203   213   271   379   291   111   359   385   367   365   201   295   339