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5 The probabilities of a boy passing English and Mathematics tests are a and b respectively. Find the probability of the boy failing both tests.
1-(a+b)+ab
1-(a+b)-ab
1-(a+b)
1-(a-b)-ab
6 Statistics is a descriptive measurement obtained from a ----------------
observation
sample
experiment
population
7 The grade of student on six examinations were 84, 91, 72, 68, 87, and 78. What is the arithmetic mean of the grades?
88
60
70
80
8 The scores of 5 students in an examination are: 6, 5, 8, 7 and 4. Find the variance.
3
2
2.5
4.5
9 The scientific method for collection, summarization, presentation, analysis and interpretation of data is called
statistics
investigation
biostatistics
questionairing
10 A ............. is the total collection of all the possible outcomes of an experiment
Sample space
Sample
Experiment
Statistics
1-(a+b)+ab
1-(a+b)-ab
1-(a+b)
1-(a-b)-ab
6 Statistics is a descriptive measurement obtained from a ----------------
observation
sample
experiment
population
7 The grade of student on six examinations were 84, 91, 72, 68, 87, and 78. What is the arithmetic mean of the grades?
88
60
70
80
8 The scores of 5 students in an examination are: 6, 5, 8, 7 and 4. Find the variance.
3
2
2.5
4.5
9 The scientific method for collection, summarization, presentation, analysis and interpretation of data is called
statistics
investigation
biostatistics
questionairing
10 A ............. is the total collection of all the possible outcomes of an experiment
Sample space
Sample
Experiment
Statistics
1) The mean and the range of the sets of numbers 1.20, 1.00, 0.90, 1.40, 0.80, 0.80, 1.20 and 1.10 are m and r respectively. Find m - r.
a)1.69
b)0.45
c)1.67
d)1.16
2) Seven Matrons assembled for a meeting, shake hands with one another. How many handshakes take place … … … … … ….?
a)394
b)5040
c)124
d)490
3) What is the evaluation of 5! ?
a)120
b)140
c)110
d)112
4) If four coins are flipped in succession, then the number of possible outcomes is … … … … ….
a)8
b)12
c)16
d)14
a)1.69
b)0.45
c)1.67
d)1.16
2) Seven Matrons assembled for a meeting, shake hands with one another. How many handshakes take place … … … … … ….?
a)394
b)5040
c)124
d)490
3) What is the evaluation of 5! ?
a)120
b)140
c)110
d)112
4) If four coins are flipped in succession, then the number of possible outcomes is … … … … ….
a)8
b)12
c)16
d)14
25 students of your school participated in a tournament of three games namely : cricket, Football and
basket ball. 15 students received medals in cricket, 12 in Football, 11 in basketball, 5 in cricket and
basket ball, 9 in cricket and football, 4 in football and basketball and 3 in all the three games. How many
students received medals in (i) none of the games (ii) cricket only.
basket ball. 15 students received medals in cricket, 12 in Football, 11 in basketball, 5 in cricket and
basket ball, 9 in cricket and football, 4 in football and basketball and 3 in all the three games. How many
students received medals in (i) none of the games (ii) cricket only.
how to design 2 different systems of mobile phone towers that will provide 100% coverage of the area.
I'm trying to measure how many pieces of glitter are in 16 ounces of glitter. How do I go about doing that?
3-5[4+3(9)]
A classroom is 38 ft long, 24 ft wide and 10ft high. Determine the volume and surface area.
How many square inches of a material is needed to create an open top rectangular solid whose volume is 54 cubic inches? Assume that the length and width are of the same measurement and that the height is twice the length.
Find the distance, in inches, between two vertices of a cube that are farthest from each other if an edge measures 10 inches.
Find the approximate change in the volume of a rectangular solid caused by increasing side by 5%
