Question

Greg wants to move out of his dormitory and into an apartment near his college. His parents agreed, on the condition that the rent is no more than 25% of the cost of dorm living. To get an idea of rent amounts for one-bedroom apartments, Greg looks at listings in a local newspaper and on an Internet site.

Which answer best describes the sample and population?

Answer 1

Sample: all available apartments near the college
Population: listings in a local newspaper and on an Internet site

Sample: all available apartments near the college
Population: all available dormitories near the college

Sample: all available dormitories near the college
Population: all available apartments near the college

Sample: listings in a local newspaper and on an Internet site
Population: all available apartments near the college

Answer 2

@Vocaloid

Answer 3

@Ultrilliam

Answer 4

@Nnesha

Answer 5

@sillybilly123

Answer 6

...

Answer 7

@umer

Answer 8

i think the answer is D, is that it?

Answer 9

i think D, too

Answer 10

There are 500 computers in an office building. The IT manager randomly chose 40 computers to be inspected for viruses. Of those inspected, 6 computers had viruses.

What is the best estimate of the percent of computers in the building that have viruses?

Answer 11

@umer this might be easier @ThatCreepyBoy

Answer 12

48, if i did this correctly

Answer 13

I did it like this, since the sample was from 40 and 40 goes into 500 12 times, just times 6 by 12

Answer 14

i have to redo it now

Answer 15

oh wait 6x12 is 72

Answer 16

wym?

Answer 17

nothing, lets just do something else

Answer 18

Use technology or a z-score table to answer the question.

The expression P(z<1.87) represents the area under the standard normal curve below the given value of z.

What is P(z<1.87)?

Answer 19

@Ultrilliam

Answer 20

@sillybilly123 btw jayrules and umer were on here :O

Answer 21

oh no, zscore... my worst enemy... so we meet again...

Answer 22

...

Answer 23

um...

Answer 24

@Ultrilliam @ThatCreepyBoy

Answer 25

I dont know this sadly v.v

Answer 26

Use technology or a z-score table to answer the question.

The scores on a standardized test are normally distributed with a mean of 500 and a standard deviation of 60. Jake scored 520 on the test.

What percent of students scored below Jake?

Round your answer to the nearest whole number.


33%

57%

63%

72%

Answer 27

what about this?

Answer 28

@ThatCreepyBoy @Ultrilliam

Answer 29

@Nnesha Pwease helpppp. You'll get a tcb cookie :O

Answer 30

@HesitantAlien

Answer 31

I'm not that great at mathematics, so I can't help you here. Very sorry.

Answer 32

@Vocaloid