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NemiM [27]
2 years ago
11

The personnel department of a large corporation wants to estimate the family dental expenses of its employees to determine the f

easibility of providing a dental insurance plan. A random sample of 12 employees in 2004 reveals the following family dental expenses (in dollars): 115, 370, 250, 93, 540, 225, 177, 425, 318, 182, 275, and 228. The sample mean is
Mathematics
1 answer:
geniusboy [140]2 years ago
7 0

Answer:

The answer is "266.5".

Step-by-step explanation:

Given value:

115, 370, 250, 93, 540, 225, 177, 425, 318, 182, 275, and\  228.

find:

Sample mean=?

=\frac{\text{total dental expenses}}{number \ of \ employees}

=\frac{115+370+250+93+540+ 225+ 177+ 425+ 318+ 182+ 275+228}{12}\\\\=\frac{3,198}{12}\\\\=266.5\\\\

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Numbers are 5 and 7

Step-by-step explanation:

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3 years ago
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Actually, you have to find four missed terms of geometrical sequence. Denote

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a_2=a_1\cdot r=25r,\\a_3=a_1\cdot r^2=25r^2,\\a_4=a_1\cdot r^3=25r^3,\\a_5=a_1\cdot r^4=25r^4,\\a_6=a_1\cdot r^5=25r^5.

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3 years ago
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Answer:

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Total number of ways in which MTHMTCS can be arranged=\frac{7!}{2!2!}

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By using formula ;n!=n(n-1)(n-2)...2\times 1

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