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pantera1 [17]
3 years ago
11

Three randomly selected households are surveyed. /The numbers of people in the households are 1, 3, and 8. Assume that samples o

f size n =2 are randomly selected with replacement from the population of 1, 3, and 8. Listed below are the nine different samples
1,1 ; 1,3 ; 1,8 ; 3,1 ; 3,3 ; 3,8 ; 8,1 ; 8,3 ; 8,8


Find the variance of each of the nine samples then summarize the sampling distribution of the variances in the format of a table representing the probability distribution of the distinct variance values


s^2 Probability

3.3

1

6.3

49
Mathematics
1 answer:
inn [45]3 years ago
8 0
The question is asking to find the variance for the said samples in the problem ans use the sample data to determine each variance, and base on my further computation and further calculation, I would say that the answer would be the following:
#1. 3.3 -> 1 and 3 -> 2/9
#2. 1-> 0->3/9
#3. 6.3 - > 8 and 3-> 2/9
#4 49-> 1 and 8-> 2/9
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erica [24]
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3 0
3 years ago
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Mamont248 [21]

Answer:

The area of the outdoor carpet = 60 - 6 - 6 = 48 ft²

Step-by-step explanation:

The picture below is what you are referring to .

The whole area of the shape forms a rectangle. A triangle and a  rectangle has been cut off from the whole carpet rectangle. The square ft or area of the carpet is the subtraction of the area of the rectangle and triangle cut off from the whole area of the rectangle .

Area of the rectangle = Lb

where

L = 12 ft

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area = 12 × 5  = 60 ft²

The cut off triangle area

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The area of the outdoor carpet = 60 - 6 - 6 = 48 ft²

7 0
3 years ago
75 miles in 3 hours ; 140 miles in 4 hours
weeeeeb [17]

Answer:

no

Step-by-step explanation:

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140:4=45:1

5 0
2 years ago
Medication is prescribed in 6 out of every 10 hospital emergency room visits that involve an injury. If a large urban hospital h
Mademuasel [1]
We can first get the percentage of the emergency room visits that involves an injury. 
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So, if there are 930 emergency room visits, the expected visits <span>included a prescription for​ medication is;
</span>
60% of 930 = 60/100 × 930
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