IV. The following are grades of 50 students in an examination in Statistics 96 57 84 71 79 69 77 81 85 90 63 88 49 82 74 69 43 71 93 75 70 55 77 92 75 76 94 90 72 60 49 73 76 68 48 95 69 89 64 59 82 88 98 63 75 69 66 86 73 90 1. Construct a frequency distribution table representing the data using the suggested procedure discussed in class. Include the following in your frequency table: Class Intervals, Tally, Frequency, Class Boundaries, Cumulative Frequency Less Than and Cumulative Frequency Greater Than. 2. Determine the mean, median, mode and standard deviation of this raw (ungrouped) data set.
IV. The following are grades of 50 students in an examination in Statistics 96 57 84 71 79 69 77 81 85 90 63 88 49 82 74 69 43 71 93 75 70 55 77 92 75 76 94 90 72 60 49 73 76 68 48 95 69 89 64 59 82 88 98 63 75 69 66 86 73 90 1. Construct a frequency distribution table representing the data using the suggested procedure discussed in class. Include the following in your frequency table: Class Intervals, Tally, Frequency, Class Boundaries, Cumulative Frequency Less Than and Cumulative Frequency Greater Than. 2. Determine the mean, median, mode and standard deviation of this raw (ungrouped) data set.
Chapter7: Systems Of Equations And Inequalities
Section7.2: Systems Of Linear Equations: Three Variables
Problem 61SE: Last year, at Haven's Pond Car Dealership, for a particular model of BMW, Jeep, and Toyota, one...
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Transcribed Image Text:IV. The following are grades of 50 students in an examination in Statistics
96
57
84
71
79
69
77
81
85
90
63
88
49
82
74
69
43
71
93
75
70
55
77
92
75
76
94
90
72
60
49
73
76
68
48
95
69
89
64
59
82
88
98
63
75
69
66
86
73
90
1. Construct a frequency distribution table representing the data using the
suggested procedure discussed in class. Include the following in your frequency
table: Class Intervals, Tally, Frequency, Class Boundaries, Cumulative
Frequency Less Than and Cumulative Frequency Greater Than.
2. Determine the mean, median, mode and standard deviation of this raw
(ungrouped) data set.
V. For the following data set, complete the table and determine the mean, median,
mode and standard deviation,
rounded off to
two
decimal
places.
Note:
Round
off
the
to
two
decimal places before proceeding
to
mean
(m – x). Write on the last two columns every digit that would appear in your calculator.
1. The following given data set is the ages of 40 residents in Brgy. 634 Sta. Mesa Manila.
C.I
f
fm
cf <
m -i
(m – x)?
(m – x)?
m
55 – 59
3
50 – 54
6
45 – 49
7
40 – 44
9
35 – 39
30 – 34
4
25 – 29
2. In a study of the time in minutes it takes an untrained mouse to run a maze, a researcher
recorded these data in seconds.
C.I
fm
cf <
(m – x)?
(m – x)2
m
5.6 – 6.2
8
4.9 – 5.5 16
4.2 – 4.8 14
3,5 – 4.1
12
2.8 – 3.4
7
2.1- 2.7
5
Transcribed Image Text:I. Using Polya's Four Steps, solve the following problems.
1. A jokester tells you that he has a group of cows and chickens and that
he counted 45 heads and 122 feet. How many cows and chickens does he have? (Do
not use the strategy of making an equation or systems of equations for this item)
2. If a family has 5 children, in how many different birth orders could the parents
have a 3-boy, 2-girl family?
3. In consecutive turns of a Monopoly game, Stacy first paid $800 for a hotel. She
then lost half her money when she landed on Boardwalk. Next, she collected $200
for passing GO. She then lost half her remaining money when she landed on Illinois
Avenue. Stacy now has $2500. How much did she have just before she purchased the
hotel? (Do not use the strategy of making an equation or systems of equations for
this item)
4. A rancher decides to enclose a rectangular region by using an existing fence along
one side of the region and 2240 feet of new fence on the other three sides. The rancher
wants the length of the rectangular region to be five times as long as its width. What
will be the dimensions of the rectangular region?
5. The four children in the Rivera family are Reynaldo, Ramiro, Shakira, and Sasha.
The ages of the two teenagers are 13 and 15. The ages of the younger children are 5
and 7. From the following clues, determine the age of each of the children.
a. Reynaldo is older than Ramiro.
b. Sasha is younger than Shakira.
c. Sasha is 2 years older than Ramiro.
d. Shakira is older than Reynaldo.
6. Determine the units digit of 3451.
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