20 sixth graders were asked: How many potted plants are in your home. Draw a histogram to represent the data, which is shown bel
ow. 0,1,2,2,3,4,4,5,5,6,6,6,6,7,7,8,8,9,11,12
1 answer:
Answer:
The histogram is attached below.
Step-by-step explanation:
The data for the number of potted plants every 20 sixth grader has in their home is:
S = {0, 1, 2, 2, 3, 4, 4, 5, 5, 6, 6, 6, 6, 7, 7, 8, 8, 9, 11, 12}
Form the frequency distribution of the data as follows:
<em>X</em> : 0 1 2 3 4 5 6 7 8 9 10 11 12
<em>Frequency</em>: 1 1 2 1 2 2 4 2 2 1 0 1 1
The histogram is attached below.
The mode of the data is, 6.
Since it has the highest frequency.
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Answer:
The probability that all 4 selected workers will be from the day shift is, = 0.0198
The probability that all 4 selected workers will be from the same shift is = 0.0278
The probability that at least two different shifts will be represented among the selected workers is = 0.9722
The probability that at least one of the shifts will be unrepresented in the sample of workers is P(A∪B∪C) = 0.5256
Step-by-step explanation:
Given that:
A production facility employs 10 workers on the day shift, 8 workers on the swing shift, and 6 workers on the graveyard shift. A quality control consultant is to select 4 of these workers for in-depth interviews:
The number of selections result in all 4 workers coming from the day shift is :
= 210
The probability that all 5 selected workers will be from the day shift is,
(b) The probability that all 4 selected workers will be from the same shift is calculated as follows:
P( all 4 selected workers will be)
where;
∴ P( all 4 selected workers is )
The probability that all 4 selected workers will be from the same shift is = 0.0278
(c) What is the probability that at least two different shifts will be represented among the selected workers?
P ( at least two different shifts will be represented among the selected workers)
= 1 - 0.0278
The probability that at least two different shifts will be represented among the selected workers is = 0.9722
(d)What is the probability that at least one of the shifts will be unrepresented in the sample of workers?
The probability that at least one of the shifts will be unrepresented in the sample of workers is:
The probability that at least one of the shifts will be unrepresented in the sample of workers is P(A∪B∪C) = 0.5256