4 years ago

What’s a random sample survey

Mathematics

1 answer:

Fudgin [204]4 years ago

4 0

Answer:

its a variety of selection techniques in which sample members are selected by chance

Step-by-step explanation:

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Which pair of numbers is relatively prime?

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Answer:

A. 143 and 63

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12 donuts cost $6.96. What is the unit rate for one donut?

drek231 [11]

Answer:

6.96/12

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Step-by-step explanation:

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3 years ago

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Ilya [14]

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Which expression are equivalent to 1/5 • 1/5 • 1/5 • 1/5

Tresset [83]

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3 years ago

Giving a test to a group of students, the grades and gender are summarized below. Round your answers to 4 decimal places.

Leno4ka [110]

Answer:

1). 0.1667

2). 0.3333

3). 0.3333

Step-by-step explanation:

1). Probability that the student was female and got a 'B'

= $\frac{\text{Number of female students who got B}}{\text{Total number of students}}$

= $\frac{3}{48}=\frac{1}{16}$

= 0.1667

2). Probability that the student was male and got an 'A'

= $\frac{\text{Number of male students who got A }}{\text{Total number of students}}$

= $\frac{16}{48}$

= $\frac{1}{3}$

= 0.3333

3). Probability that the student got a B = $\frac{\text{Number of students who got B}}{\text{Total number of students}}$

= $\frac{16}{48}$

= $\frac{1}{3}$

= 0.3333

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3 years ago