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mamaluj [8]
3 years ago
9

An experimenter wants to estimate the average water consumption per family in a city. Discuss the relative merits of choosing in

dividual families, dwelling units (single-family houses, apartment buildings, and so on), and city blocks as sampling units. What would you use as a frame in each case?
Mathematics
1 answer:
skelet666 [1.2K]3 years ago
4 0

Answer:

Solution: an Experimenter whats to estimate the average water consumption per family in the city

if individual families are used as the sampling united, a frame could be using censes data or atelephone book

if dwelling are used as the sampli units, aframe could be using Address book or city directory

If city blocks are used as the sampling units, aframe could been using is city directory

Step-by-step explanation:

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Suppose that 1/2 of all cars sold at a Nissan dealer in a given year are Altimas, 1/3 are Maximas, and the rest are Sentras. Sup
IRINA_888 [86]

Answer:

(1) Not conditional, 5/8

(2) Not conditional, 1/12

(3) Conditional, 1/18

Step-by-step explanation:

Fraction of cars sold

Altima = 1/2

Maxima = 1/3

Sentra = 1 - (1/2 + 1/3) = 1 - 5/6 = (6 - 5)/6 = 1/6

Fraction of cars sold with moon roof

Altima = 3/4 × 1/2 = 3/8

Maxima = 1/2 × 1/3 = 1/6

Sentra = 1/2 × 1/6 = 1/12

(1) Probability (a randomly selected car has a moon roof) = 3/8 + 1/6 + 1/12 = (9+4+2)/24 = 15/24 = 5/8

(2) Probability (a randomly selected car has a moon roof given it is Sentra) = 1/12

(3) Probability (a randomly selected car is a Maxima if it has a moon roof) = 1/3 × 1/6 = 1/18

A conditional probability uses if (as a condition) in making statements or asking questions

An unconditional probability makes statement or ask question without the use of condition (if)

5 0
3 years ago
3ewhgaxjbhnkm4rewbs nkm11 what's 1+ 10 ?
saul85 [17]

Answer:

its 11

Step-by-step explanation:

1+ 10= 11 just add 1 hope it helps.

6 0
3 years ago
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Two trains leave the station at the same time, one heading east and the other west. The eastbound train travels at 75 miles per
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Let the time = x

Distance = Speed x time

One train is 75x, the other train 85x

Add together to equal total distance:

75x + 85x = 384

Simplify:

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Divide both sides by 160:

x = 384 / 160

x = 2.4 hours

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2 years ago
A circle has a radius of 6 cm. What is its area?
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Answer: A=113.1cm

Step-by-step explanation:

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2 years ago
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Can someone tell me what it is and explain it in an easy way, I'm kind of an idiot
lubasha [3.4K]
1/2 x 3/4
1 x 3 / 2 x 4
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6 0
2 years ago
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