LP9 Assignment
LP9 Assignment
Which of the following is the properly rounded mean for the given data?
7, 8, 13, 9, 10, 11
A) 10
B) 9.7
C) 9.67
D) 9
What is the median of the following set of values?
8, 6, 3, 1, 12
A) 3
B) 5
C) 6
D) 7
Find the mode for the following data?
5, 4, 3, 4, 5, 6, 5, 5, 3, 4
A) 3
B) 4
C) 5
D) 6
If a set of data has 49 values with a variance of 9.6, then the standard deviation is
_________.
A) 1.4
B) 0.4
C) 0.2
D) 3.1
If a data set has 9 values and a standard deviation 9.4, then the variance is ________.
A) 88.4
B) 3.1
C) 29.5
D) 28.2
The staff at a small company includes: 4 secretaries, 20 technicians, 4 engineers, 2 executives, and 50 factory workers. If a person is selected at random, what is the probability that he or she is a factory worker?
A)
1
4
B)
1
8
C)
5
8
D)
2
5
An apartment building has the following distribution of apartments:
1 bedroom
2 bedroom
1st floor
3
1
2nd floor
2
2
3rd floor
1
4
3 bedroom
1
2
1
If an apartment is selected at random, what is the probability that it is on the 2nd floor or has 2 bedrooms?
A)
7
11
B)
6
11
C)
13
17
D)
11
17
Box A contains the numbers 1, 2, 3, and 4. Box B contains the numbers 5, 6, 7, and 8. A number is first drawn from Box A and then another number from Box B. Using the figure below, how many outcomes are possible if both numbers are even?
A) 16
B) 4
C) 6
D) 8
A university has 10,000 students of which 35% are male and 65% are female. If a class of 30 students is chosen at random from the university population, find the mean and variance of the number of male students.
A)
C)
B)
D)
Mean = 19.5,
Mean = 19.5,
Mean = 10.5,
Mean = 10.5,
Variance
Variance
Variance
Variance
= 2.6
= 6.8
= 2.6
= 6.8
A coin is tossed 5 times. Find the probability that all 5 tosses are tails.
A)
1
5
B)
1
25
C)
1
10
D)
1
32
In a second grade class containing 15 girls and 11 boys, 2 students are selected at random to give out the math papers. What is the probability that both
Which of the following is the properly rounded mean for the given data?
7, 8, 13, 9, 10, 11
A) 10
B) 9.7
C) 9.67
D) 9
What is the median of the following set of values?
8, 6, 3, 1, 12
A) 3
B) 5
C) 6
D) 7
Find the mode for the following data?
5, 4, 3, 4, 5, 6, 5, 5, 3, 4
A) 3
B) 4
C) 5
D) 6
If a set of data has 49 values with a variance of 9.6, then the standard deviation is
_________.
A) 1.4
B) 0.4
C) 0.2
D) 3.1
If a data set has 9 values and a standard deviation 9.4, then the variance is ________.
A) 88.4
B) 3.1
C) 29.5
D) 28.2
The staff at a small company includes: 4 secretaries, 20 technicians, 4 engineers, 2 executives, and 50 factory workers. If a person is selected at random, what is the probability that he or she is a factory worker?
A)
1
4
B)
1
8
C)
5
8
D)
2
5
An apartment building has the following distribution of apartments:
1 bedroom
2 bedroom
1st floor
3
1
2nd floor
2
2
3rd floor
1
4
3 bedroom
1
2
1
If an apartment is selected at random, what is the probability that it is on the 2nd floor or has 2 bedrooms?
A)
7
11
B)
6
11
C)
13
17
D)
11
17
Box A contains the numbers 1, 2, 3, and 4. Box B contains the numbers 5, 6, 7, and 8. A number is first drawn from Box A and then another number from Box B. Using the figure below, how many outcomes are possible if both numbers are even?
A) 16
B) 4
C) 6
D) 8
A university has 10,000 students of which 35% are male and 65% are female. If a class of 30 students is chosen at random from the university population, find the mean and variance of the number of male students.
A)
C)
B)
D)
Mean = 19.5,
Mean = 19.5,
Mean = 10.5,
Mean = 10.5,
Variance
Variance
Variance
Variance
= 2.6
= 6.8
= 2.6
= 6.8
A coin is tossed 5 times. Find the probability that all 5 tosses are tails.
A)
1
5
B)
1
25
C)
1
10
D)
1
32
In a second grade class containing 15 girls and 11 boys, 2 students are selected at random to give out the math papers. What is the probability that both