WORKSHEET 5
1. The following data represent the fire in the week for 4 cities. Choose the correct frequency distribution to organize the data
a) Class
Limit Frequency
4-7 2
7-10 3
10-13 6
15-18 8
b) Class
Limit Frequency
4-7 2
8-11 5
12-15 9
16-19 2
c) Class Limit
Frequency
4-7 2
8-11 3
12-16 6
17-21 8
d) Class Limit
Frequency
4-7 2
7-10 3
10-13 1
13-16 5
2. What are the boundaries of 49.005 ounces ? a) 49-50 ounces
b) 48.505-49.505 ounces c) 49.0045-49.0055 ounces d) 48.955-49.055 ounces
3. The class width for the class limit 28-33 is a) 5
b) 6 c) 33 d) 28
The following table shows the frequency distribution of temperature (in degree centigrade) of 30 countries :
Use the above table to answer questions(4-6)
4. The number of countries with temperature less than 44.5 is a) 8
b) 10 c) 3 d) 23
5. The percentage of values in second class is : a) 33.33
b) 16.67 c) 0.1667 d) 0.2667
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6. The midpoint in the first class is:
a) 32 b) 32.5 c) 37 d) 64
Class Limit
Frequency
30-34 10
35-39 5
40-44 8
45-49 7
WORKSHEET 6
Use the following graph to answer the question (1-2) 1. The graph has ………peak
a) four b) One c) Three d) Two
2. Type of graphs is:
a) Frequency polygon b) Ogive
c) Cumulative frequency d) Curve
3. Other name for ogive is:
a) Histogram
b) Frequency Polygon
c) Cumulative frequency graph d) Pareto Chart
From the ogive below, answer (4-5)
4. Approximately what is the total number of observations?
a) 222 b) 50 c) 8 d) 134.5
5. How many records high temperature are less than 109.5?
a) 50 b) 40 c) 28 d) 10
Using the histogram shown here, do the following : 6. How many values less than 33.5 ?
a) 0 b) 14 c) 10 d) 16
7. How many classes in the above chart ? a) 7
b) 6 c) 12 d) 4
8. The class width is ….
a) 4 b) 3 c)5 d)2
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Worksheet 7
1. What graph should be used to show the relationship between the parts and the whole ? a) Histogram
b) Pie graph c) Pareto graph d) Ogives
2. Data collected over period of time can be graphed using ………..graph a) Pareto graph
b) Pie graph c) Time serious d) Curve
3. Choose the correct stem and leaf plot which represent the following data 16 10 11 30 35 33 35 44 47
a) 1 0 1 6 2 0
3 0 3 5 5 4 4 7
b) 1 0 1 6 3 0 3 5 5 4 4 7
c) 1 0 1 6 2
3 0 3 5 5 4 4 7 d) 1 0 1 6
3 0 3 5 4 4 7
4. Percentages can be used in which type of graph…
a) Histogram b) Pareto chart c) Pie graph d) Ogive
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5. A researcher wishes to represent the percentage of students in the department of statistics using a pie graph. If the percentage of statistical department students is 25%, then their corresponding degree of the angle on the pie graph is ...
a) 300
b) 1080
c) 900
d) 1800
6. In a stem and leaf plot, the stem part for the data value 347 is ...
a. 34 b. 7 c. 47 d. 3
7. A department store wants to construct a pie graph to represent the marital status (ةيعامتجلاا ةلاحلا) of its employees. There were 30 married , 10 divorced, 20 singles and 5 widows. How many degrees will be needed to represent the divorced(تاقلطملا ) employees?
a) 41.6⁰ b) 10⁰ c) 55.38⁰ d) 15.4⁰
8. When data are collected from January to December in year 2011 , then they can be represented by a) Histogram
b) Pie graph c) Time series d) Pareto chart
9. The heights of vertical bars in the histogram represent the ……..
a) Class width b) Sample size
c) Frequencies of classes d) Number of classes
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