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Basile [38]
3 years ago
15

A comprehensive survey released by a college reports that the true proportion of all students at the college who use drugs is 0.

3. You survey 100 students in your dorm and record that the proportion of students who use drugs is 0.15. The proportion of all students at this college who use drugs is a
Mathematics
1 answer:
Sav [38]3 years ago
3 0

Complete Question

The proportion of all students at this college who use drugs is a_____and the proportion of students who use drugs in your dorm is a <u>_____ .</u>

Options

  • a. statistic; parameter
  • b. parameter; statistic
  • c. population; sample
  • d. measure of central tendency, measure of variability
  • e. none of the above

Answer:

b. parameter; statistic

Step-by-step explanation:

A parameter is a summary of data for an entire population.

Statistic, on the other hand, summarizes data for a sample of the population.

The proportion of all students at this college who use drugs is a <u>parameter</u><u> </u>and the proportion of students who use drugs in your dorm is a <u>sample. </u>

The correct option is B

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Read 2 more answers
In game 1 emerson struck out 30 times in 90 times at bat in game 2 he struck out 40 times in 120 times at bat
Agata [3.3K]

Answer:

a) 32

b) 67.613

Step-by-step explanation:

<em><u> In Game 3, Emerson struck out 42 times in 140 times at-bat.</u></em>

<em><u>Part A</u></em>

<em><u>Drag numbers to complete the proportion to represent the percent of strikeouts per at-bats.</u></em>

<em><u>Numbers may be used once or not at all.</u></em>

<em><u /></em>

<em><u>Part B</u></em>

<em><u>What percentage of times at bat did Emerson actually hit the ball?</u></em>

Part A

Total number of strikeouts= 30+40+42= 112

Total number of at bats = 90+120+140= 350

strikeouts : times

112: 350

p:100

Using cross product rule

p/100= 112/350

p * 350= 112*100

or p= 11200/350= 32

It means that there were 32 strikeouts if 100 times were bat at hits.

Part B:

Total number of strikeouts= 30+40+42= 112

Total number of at bats = 90+120+140= 350

But we need the percentage of times at bat hit

Therefore

Hits= times - strikeouts= 350-112= 238

Percentage = 238/352*100= 67.613

Check

The above answers are correct because

100-32 = 68

68 ≅ 67.613

7 0
3 years ago
What percent of the time will the point be in the shaded region
Natalka [10]

Answer:

29.4%

Step-by-step explanation:

the whole cirlce is 360 degrees which means 100%

to find the percentage of the shaded area, multiply the degrees by 100

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then take the product and divide by 360

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⇒ 29.44

round to the nearet tenth of a percent

⇒ 29.4

8 0
3 years ago
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