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kozerog [31]
3 years ago
8

Fran would like to estimate the mean amount of time it takes people in her town to travel to work. The town's population is 150,

000 and about 90,000 of those are working adults.
Which statements are true?


Select each correct answer.


A. If she takes a random sample of the population of working adults in her town, the mean for that group is likely close to the mean for the entire group.


B. The population of working adults is too large for using a sample to estimate the mean of the entire group.


C. There is no way to infer the value of the mean. She must collect data for all 90,000 working adults and calculate the mean.


D. A larger sample of working adults will provide a better estimate of the true mean than a smaller sample.




You have to choose more than one
Mathematics
1 answer:
castortr0y [4]3 years ago
5 0

Answer: A,D

Step-by-step explanation: I think that it is right?

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Ronch [10]

Answer:

1cm

Step-by-step explanation:

from the scale we know that

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Below I have made a table and used the unitary method.

Distance on Map Distance on ground

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let width be = x width = 3m = 300cm

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4 0
2 years ago
X-5=7 <br>X-8=20<br>X+2=-1<br>X-9=12<br>X+-6=-7<br>X-8=-3<br>-7-X=-9<br><br>HELPPP MEE!!​
Gnom [1K]

Answer:

look below

Step-by-step explanation:

x - 5 = 7

x = 12

.................

x - 8 = 20

x = 28

.................

x + 2 = -1

x = -3

................

x - 9 = 12

x = 21

...............

x + -6 = -7

x = -1

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x - 8 = -3

x = 5

..................

-7 - x = -9

-7 = x - 9

2 = x

8 0
3 years ago
9 less than the product of 37 and x
zepelin [54]
Alrighty, so, 9 less hints to subtract. The product of 37 and x means that you're multiplying 37 and x. Therefore, I believe the answer that you're looking for is 37x-9.

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8 0
3 years ago
Help for number 4 part a and part b
djyliett [7]
Part A:  7/10 because .7 represents 70/100 of a whole, or 7/10.

Part B: I think 1 and 89/100 because 89/100 represents that fraction

These are my answers, so I may be wrong.

Hope I helped, and good luck!

4 0
3 years ago
{This question has been deleted}
stiks02 [169]

Answer:

this question isn't deleted yet

4 0
3 years ago
Read 2 more answers
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