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trasher [3.6K]
3 years ago
10

Identify the kind of sample that is described.

Mathematics
1 answer:
puteri [66]3 years ago
4 0

Answer:

Convenience is the sample

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What is the probability that the first marble is blue and the second marble is yellow?
Cloud [144]

Answer:

\frac{1}{14}

Step-by-step explanation:

<u><em>First time drawing:</em></u>

Total outcome is 8

Favorable outcome is 2

The probability that the first marble drawing in random is blue is

\frac{2}{8} = \frac{1}{4}

<u><em>Second time drawing (with no replacement): </em></u>

Total outcome is 7  (8 - 1 = 7)  

Favorable outcome is 2

The probability that the second marble drawing in random is yellow is

\frac{2}{7}

<em>The probability that the first marble is blue and the second marble is yellow is</em> \frac{1}{4} × \frac{2}{7} = \frac{2}{28} = \frac{1}{14}

5 0
3 years ago
Please help
larisa [96]

Step-by-step explanation:

1/3,0,9

9,3,27

1/9,3,27

3 0
3 years ago
A certain recipe ask for 5/9 flour and 1/3 flour. how much flour is needed ?
Bad White [126]
5/9 + 1/3 = 5/9 + 3/9 = 8/9 <==
6 0
3 years ago
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What is the volume in cubic feet of the rectangular prism?
dangina [55]
Where is the picture?
3 0
3 years ago
15. The floor plan of the basement of a shopping centre is drawn to a scale of 1:400.
maks197457 [2]

Answer:

  • 4 hectares

Step-by-step explanation:

<u>The scale factor is:</u>

  • k = 1/400

Applied to the area we consider k² as the area is the product of two dimensions.

<u>Find the actual area:</u>

  • 0.25 m² : (1/400)² =
  • 0.25 m² * 160000 =
  • 40000 m² =
  • 40000 * 1/10000 hectares =
  • 4 hectares
6 0
3 years ago
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