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Cheyenne8694
08.02.2021 •
Mathematics
For the following exercise, determine the range (possible values) of the random variable, X. A batch of 300 machined parts contains 10 that do not conform to customer requirements. The random variable is the number of parts in a sample of 5 parts that do not conform to customer requirements. Choose the correct answer.
a. The range of X is {0,1,2,3,4,5,6}
b. The range of X is {0,1,2,3,4,5,6}
c. The range of X is {0,1,2,3,4,5,6}
d. The range of X is {0,1,2,3,4,5,6}
e. The range of X is {0,1,2,3,4,5,6}
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Ответ:
{0,1,2,3,4,5}
Step-by-step explanation:
We are given that
Total number of machine parts=300
Number of defective machine parts=10
Total number of good machine parts=300-10=290
Sample contain parts that do not conform to customer requirement=5
X is a random variable which is the number of parts in a sample of 5 parts that do not conform to customer requirements.
We have to find the correct answer.
The sample contain 5 parts
Therefore, the possible values of random variable X
0,1,2,3,4,5
Hence, the range of X is given by
{0,1,2,3,4,5}
Ответ:
$21,750
Step-by-step explanation:
If returns and allowances were 8% of Costa's sales, then his net sales were 92% of his gross sales. His commission is figured on net sales, so we have ...
commission = rate × net sales = rate × (92% × gross sales)
$2101.05 = 0.105 × 0.92 × gross sales
gross sales = $2101.05/(0.105×0.92) = $21,750
Costa's gross sales for July were $21,750.