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Anuta_ua [19.1K]
3 years ago
15

A researcher uses an anonymous survey to investigate the television-viewing habits of American adolescents. Based on the set of

356 surveys that were completed and returned, the researcher finds that these students spend an average of 3.1 hours each day watching television. For this study, the set of 356 students who returned the surveys is an example of a _______.
Mathematics
1 answer:
kow [346]3 years ago
8 0

Answer:

The answer is - sample.

Step-by-step explanation:

Based on the set of 356 surveys that were completed and returned, the researcher finds that these students spend an average of 3.1 hours each day watching television.

For this study, the set of 356 students who returned the surveys is an example of a SAMPLE.

A sample is defined as a small part that shows what the whole population is like.

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Hehe help, sorry for asking a lot of questions :)
leva [86]

Answer:

B. 400

Step-by-step explanation:

60

----  *100% = 400%

50

Please mark me brainliest and have a nice day :)

3 0
3 years ago
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Gordon types 43 3/4 pages in 3 1/2 hours. What is his rate in pages per hour
Olegator [25]

Answer:

His rate is 12 1/2 pages per hour.

Step-by-step explanation:

Given that,

Gordon types 43 3/4 pages in 3 1/2 hours or Gordon types 175/4 pages in 7/2 hours./ We need to find its rate in pages per hour. So,

R=\dfrac{\dfrac{175}{4}\ \text{pages}}{\dfrac{7}{2}\ \text{hour}}\\\\R=\dfrac{175}{4}\times \dfrac{2}{7}\\\\R=12.5\ \text{pages per hour}\\\\R=12\dfrac{1}{2}\ \text{pages per hour}

Hence, his rate is 12 1/2 pages per hour.

8 0
3 years ago
50 points: Find the probability that a randomly selected point within the circle falls in the red shaded area..
luda_lava [24]

The probability will be 0.32

Step-by-step explanation:

Find the area of the shaded region

Area of a triangle is given by = 1/2 product of base and height of the triangle

Area of a triangle= 1/2*b*h where b is base length and h is height of the triangle

A=1/2*4*4 *2 =16 cm²

Area of the circle = π×r² where r is radius=4 cm and π =3.14

Area of the circle= π × 4×4 =16π =50.24 cm²

The probability that a randomly selected point within the circle falls in the red shaded area will be : P(area of shaded part/area of circle)

p=16/50.24 =0.31847133758

p=0.32 (rounded to the nearest hundredth)

Learn More

Probability : brainly.com/question/9103248

Keywords : probability, randomly selected, shaded area

#LearnwithBrainly

3 0
4 years ago
(5) On January l, 1988, Felix inherited a perpetuity with annual payments beginning in six months. The first payment was $3,000,
valkas [14]

Answer:

Hence the value of this perpetuity on January 1, 1995 will be $55993.18404

Step-by-step explanation:

8 0
3 years ago
4/18+2/9 =? Solve this by adding fractions
nirvana33 [79]

Answer:

4/9 is the answer

Step-by-step explanation:

7 0
3 years ago
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