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Dimas [21]
3 years ago
15

Which size random sample is likely to provide the most trustworthy results

Mathematics
1 answer:
Zarrin [17]3 years ago
4 0
At least 30 observations to get a reasonably normal distribution.
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Please help me I need this answer and I can not figure it out im not smart so could you please help
Rom4ik [11]

So really all you have to do is simply the expressions on top to match them.

Starting with (4t-8/5)-(3-4/3t), distribute the negative sign to the right portion in parentheses, then distribute it all out and you will get 16/3t- 23/5

Basically, use distribution to simplify, here's all the matches:

(4t-8/5)-(3-4/3t) --> 16/3t- 23/5

5(2t+1)+(-7t+28) --> 3t+33

(-9/2t+3)+(7/4t+33) --> -11/4t+36

3(3t-4)-(2t+10) --> 7t-22

6 0
3 years ago
Read 2 more answers
Can you help me figure this out?
Kaylis [27]

Answer:

  D.  $8 per hour

Step-by-step explanation:

The rate of pay is found by dividing the pay by the number of hours it is for.

  $40/(5 h) = $8/h

The worker gets paid $8 per hour.

6 0
2 years ago
What can you weave into your game in order to make it easier to pinpoint a particular audience?
Viktor [21]

Answer:

B. A secret cheat

Step-by-step explanation:

Correct me if i am wrong

6 0
2 years ago
Hillary, Ashley, Will, and Carlton were planning a surprise anniversary party for Viv and Phillip. The trip was going to cost th
elena55 [62]

Answer:

Hillary 2400

carlton 800

will 3200

ashley 1600

Step-by-step explanation:

hillary 30% of 8000 ---- 8000:100×30=2400

will 2/5 of 8000 8000:5×2=3200

carlton 1/4 of will's---- 3200:4=800

ashley: rest, which is 8000-(2400+3200+800)=8000-6400=1600

4 0
3 years ago
Ran has 17 cameras to clean. He cleans 10 cameras.Then rah finds 8 more cameras to clean. How many cameras does ran has to clean
iren2701 [21]

Answer:

total of 25 to clean.

did 10

has 15 left

5 0
2 years ago
Read 2 more answers
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